How to upgrade Samsung Galaxy S2 firmware with Samsung Kies?

Upgrade Samsung Galaxy S II firmware with Samsung Kies is a very simple task. Basically, you just need to open up Samsung Kies. Then plug in USB cable to your Samsung Galaxy S2. Continue the firmware upgrade by following the onscreen instructions. Anyway, I have a picture step by step guide for those new beginners to firmware upgrade. No worry, it is really as simple as ABC…

You will get a pop up if a new firmware version is available when you connect Samsung Galaxy S2 to Samsung Kies. Just click Update to start the firmware upgrade process.

Or click Firmware upgrade if you miss out the pop up.

Read all the instructions carefully. Then check I have read all of the above information. Finally, click Start upgrade.

Select those components that you wish to backup. Then click Continue.

Backup completed. Click Complete to continue…

It will take some times (depend on your Internet connection speed) to download new firmware from Samsung server. The firmware file is usually 200 MB to 300 MB.

Your Samsung Galaxy S2 should boot into download mode during this stage. As usual, don’t disconnect the USB cable.

Firmware upgrade complete

Your Samsung Galaxy S2 should be rebooted by itself after success firmware upgrade. That’s all. Enjoy the latest official firmware for Samsung Galaxy S2.


  1. hello there, i try to follow all the instruction, but my samsung galaxy s2 wont reboot into download mode after downloading the firmware. it just disconnected then reconnected into usual usb connected mode. any suggestion? please help me….

      • i never root my phone, and im using stock firmware it is state there at SETTING/ABOUT PHONE/
        KERNEL VERSION – 2.635.7-I9100XWKF1-CL2655340 root@DELL106#2
        any idea what i should do?

        • Try these to load download mode manually. See can work or not.

          Power off your phone.
          Press and hold down Volume Down + Home + Power buttons at the same time.
          Press Volume Up button when warning prompt.
          Odin download mode will be loaded.

          • hi Jayce
            I bought my sgs2 here in the Philippines and tried updating with keis and followed the instruction but im also having this problem can you help me?

            • Samsung support pointed me in the direction of Parallel Imports which is a store in New Zealand that imports phones and are a lot cheaper that the normal retailers. I rang them and they said that they can up-date my phone (purchased overseas) with the new Sandwich firmware for $50 that is compatible with my phone.

              I don’t know where you are but there must be something similar available. Samsung said that if I download the firmware for NZ on my phone it will completely wreck it.

    • Hi Jayce,

      I was hoping I could continue on this thread since I have the same exact condition with my SG2 as with ahmad and abe.

      The answer to your question “You can’t upgrade firmware if no new update available. But your issue is that you can’t upgrade even there is new update, right?”would then be ‘yes’.

      Any suggestions?

      Thanks in advance

  2. Hi Jayce,
    Tried to update via Kies. Firmware file downloaded successfuly but after thet got a message: Cannot access the model information server. Try later”

    Is this normal or have I not done something which is needed to be done?
    Thanks for any advise.

  3. Hi Jayce,
    Thanks for the speedy reply. Will try out later. I too believe server is busy, considering every S2 owner wanting to upgrade their S2.


  4. Hi Jayce,
    Tried again today to apply the update. I got up to completely downloading the firmware, phone switched to Download Mode and the process just stayed there for more than 30 minutes, wth progress bar still stuck at 0%. Again I sense the firmware is not flashed into my S2. I pull off the USB cable, got a warning from KIES. Remove battery from S2 and reboot. Back to sqaure 1. Firmware still in XWKF1.
    What do you think is blocking the upgrading. I have my PC AVG guard deactivated. Perhaps I should uninstall AVG completely?

        • I am having a boot loop issue with SGSII ICS upgrade. First problem was getting Kies to recognize my phone…but after a couple of days, suddenly is connecting and am able to export my data to Kies.

          Now my problem is when connected to Kies, I am receiving the ICS firmware upgrade notification…. after I agree to upgrade and the firmware upgrade components download and hit 100%…. it loops back to “connecting” and prompts again for firmware upgrade….. endlessly.

          My phone is not rooted…. I have reinstalled Kies, Samsung mobile drivers….rebooted phone and computer…. and still this problem continues. Reading others having same issue and Samsung tech support without solution.

  5. Do it take so long to prepare firmwaare upgrade components..
    it won’t go to download mode..
    this is stock gs2, just buy it a few week ago..

      • its finish downloading firmware upgrade components..
        then it disconnected then reconnected usb connected mode…
        after that its prepare firmware upgrade components..
        its been 2 hour plus.. so i unplug the cable..

          • Hi Jayce,

            Same issue with me too, its finish downloading firmware upgrade components..
            then it “disconnects then reconnect usb mode” automatically…when actually…the screen hangs showing…”Preparing firmware components…” and it never goes ahead.

            I tried many time in last 1 week…my internet connection is perfect (through USB dongle broadband) and SG2 is genuine not rooted etc. I searched in google but can’t find solution or actual cause…some say…its a Kies issue.

            Please help me with some resolution. I am badly in need for the upgrade as its does increase battery life (i read in net).

              • Hi Jayce,

                I just updated the latest firmware version using Kies.
                Previously unsuccessful update maybe because:
                – I’m using broadband connection for internet.
                Try that before using wifi, fail. Then i connected to wifi (remove broadband modem), try it again and successful upgrade firmware without any problem. We need to disconnect all mobile devices including broadband internet connection.

                Thanks Jayce, your site full of info. πŸ™‚

  6. I hv prolem on updating the firmware.
    When it is about to start to update afterthe third screen, the”Battery Low, pls recharge” always prompt out. and it stop the updating.

    In deed that my phone already been 100% charge with full bar battery sign.
    Pls advise how can i update the firmware?

  7. My kies says tht i have the latest firmware.

    Latest Firmware version : PDA:KF3 / PHONE:KE4 / CSC:KF3 (INU)

    Is the latest one? If not how do i update the firmware?

  8. Hi, On another quick note, I have the option to upgrade the firmaware, but Samsung Kies is taking waaay too long and seems to freeze when using the PC app (Kies).
    Currently i cannot back up, import/export as kies doesnt seen to be responding?
    Tried to export my pics to pc and kies never completes the task.
    Anyone have any suggestions?? Please help.

  9. Hi Jayce, Thanks for the speedy reply. Its not just my back up that isnt working, its exporting too. In fact nothing works! I have a SGS2 phone and running XP SP3. I was advised on another forum to untick the “Debugging” function in settings, but this has still not helped. It takes up 100% of my pc’s capability! I am in the process of contacting Samsung support now.
    Thanks again

  10. Hi Jayce,
    I am using Samsung Galaxy S GT I9000. Whenever i try to connect Kies, it does not connect. But when i reboot the Phone, it connects. And then when i try to upgrade, i am able to cross till the page wherin it downlaods Firmware upgrade setting and then it does not reboot and hence the whole process hangs. i have tried the same many a times using different systems but the same result. How do i upgrade and what would be the issue? Pleas Help


  11. hi jayce,
    i am using samsung galaxy SII… can u tell me what is the latest firmware provided by samsung kies in India.. thnx, it will be a great help…

  12. Hi Jayce, I have the same issue. its still stuck in “Preparing download Components” do you have any resolution for this issue?

  13. Hi Jayce,

    I’m upgrading my S2 firmware via Kies, but it seems to have frozen at 35%. It’s been at this point for over half an hour with no sign of progress. What can I do? Is it safe to pull the battery at this point?

  14. hi Jayce,
    out of curiosity, any idea why my colour resolution on my camera is blue/green when visiting chat sites?
    ive noticed other s2 users have same strange colour resolution

  15. Hi Jayce,

    I tried to update the firmware through Kies like above but once firmware upgrade components are downloaded an error would appear saying ‘Failed to run firmware update. Unknown error occured.’

    I noticed that while downloading the components, the Kies main window (still showing in the background) prompts to connect a device, as if the phone is not connected anymore.

    What can I do please ?

    Thanks & Regards.

  16. i have upgraded my galaxy s 2 using kies
    my BASEBAND VERSION -I9100DXKH2 after update

    The question is, can i update my galaxy s 2 with other KERNEL/BASEBAND to make my android become android 2.3.5 version..

  17. Hi Jayce,

    I am noobie here…do i have to remove the SIM card and microSD card before the upgading the phone?

    Your site full of info…thanks a million πŸ™‚

  18. Hi this may be out of topic but i hope you can help me..
    When i use a silicone case on my galaxy s2 and i call someone, the person i called hears an echo. but when i remove the case during the call the echo disappears. do you experience this on your galaxy s2? Any suggestion on what to do? Im not sure if its a hardware problem because if im not using a case everything is ok. It would be difficult to explain and ask for a replacement unit. Thanks in advance.

      • This question is a couple of months old, but for future visitors…

        Check that the case isn’t blocking any ports, and that it seals against the phone properly. Echo cancellation can degrade for a variety of reasons, but one example could be where the case forms a cavity between your speaker and microphone, redirecting speaker audio and increasing the level picked up by the microphone. Normally this would be lower and will be gated out as it is easier to distinguish lower levels of audio from the speaker when compared to your voice.

        Hope your new case worked, as Jayce suggested… To another brand of-course πŸ˜‰

  19. Hi Jayce:

    I am in India. I have a rooted galaxy s2. I tried custom ROMs like Cyanogen and MIUI. But many of my phone’s beautiful features could not be used in those ROMs. I have CWM in which i had made backup of stock ROM. So i restored it and happy with samsung UI. But I want to at least update my phone whenevr samsung releases new firmwares and updates. I cant update from mobile, because I have ClockWorkMod recovery and update demands for default samsung recovery. My phone’s current status:

    Android Version 2.3.3
    Baseband version I9100XXKG6

    Kernel Version dirtycodeworkx@cyanogenmod #4


    I want to know how i can update my phone and also suggestion regarding new update whether its feasible or not. because, ryt now i am happy with EVERYTHING except battery life. I even have enabled video chatting on Gtalk on 2.3 only. So only if there is drastic change in battery life or any new feature added to new firmware, I am updating. Or else no.. so please help me in this matter.

    Thanks in Advance

    • You should be able to upgrade to latest firmware if you are on stock firmware (not sure rooted can or not. But some said can).

      Europe region firmware is always getting the latest update. The rest have to wait…

  20. Hi Jayce, i got a problem here, when my phone is in download mode and i plug my usb cable my laptop shown that devise is not recognised. May i know how to solve this?

          • Note: Install Kies before you connect your phone – otherwise if Windows is using any default drivers (e.g. ‘Storage Device’, etc) then your phone drivers may not install properly.

            Plug in the phone, but if still not working then go…

            Start >> Control Panel >> System >> Device manager, and you should see a yellow question-mark showing ‘Unrecognised Device’. If not, then you should see ‘Unknown Device under the ‘Universal Serial Bus Controllers’ group.

            When found, right click over the offending device, select ‘Update Driver’, and choose to browse to the location where you installed Kies. In one of the directories the driver should be found, usually evidenced by the ‘OK’ button in the browse window showing up (formerly greyed out). Click and the driver should install πŸ™‚

  21. i see.. i will try to reinstall it later.. beside, how if i wan to reflash my firmware back to original? Currently :
    Baseband -I9100XXKDJ
    Kernel –

    Normal mode detect to Kies (yes)
    Normal mode detect to Odin (yes)
    Download mode detect to Odin (no)

  22. Hi, i would like to ask that my galaxy s2 is unable to do the upgrade from Kies. Why like this?? i never root phone. and It written that my version unable to do the updated?

  23. hey jayceooi, what is the best firmware for samsung galaxy s2 and what is the latest official firmware available in asia region? thnks

  24. Hi Jayce,
    AlFlo back with good news. I had previously reported that I was not able to upgrade with KIES.
    MY problem was with the file downloaded, the flashing into S2 was not progressing. Just stayed at 0% for more than 40 minutes. Although KIES indicated not to remove cable, seeing zero progress, I had removed the cable, reboot the S2 by removing the battery and restarting. Tried this many times over the week but no joy.

    Today, suspecting the culprit to be my desktop PC, I had managed to update successfully, using my notebook, freshly formatted, running Win 7 and updated KIES. Nothing in this notebook to interfere with the updating and I was right.
    Just for those trying to update using KIES, please bear in mind that the file download will take anything from 40 minutes to 1 hour. When it is downloaded, the flashing into S2 takes only 12 minutes (in my case).

    Best of luck to all who had not updated yet.

  25. Hi ! jayce ,juz check kies it say tat a new firmware upgrade:PDA:k12 /PHONE:ki1/CSC:KH1(XSP) and my phone is root. firsttimer. 1)wat version is tis firmware 2)phone root can i stil upgrade frm kies 3)do i need to backup data & apps

    My old stock firmware:baseband version(i9100DXKF1)-Build num( Gingerbread XWKF1)


    plz reply…. thx

  27. The new firmware for my galaxy s2 is detected and on clicking update, the firmware is downloaded but when it starts the update, the update process fails and the kies window is displayed with a message that a new firmware is available. i have tried restarting my system, phone etc but everytime the firmware upgrade process alone fails….windows 7 64 bit

    Any ideas?

  28. i’ve been trying to update with keis…..the download starts normally but then when it reaches 20% or so the phone gets disconnected and the whole process has to be done again….pls help…..spent all night doing it but in vain

  29. Hello!! i ‘ve tried to update the firmware by Kies… during the instalation and when it was to 70% an error occurred! i had to try with emergency recovery but nothing happened as ewell, now I can’t open my galaxy s2 cause when i do it the only thing i see is a classic icon that shows that a connection between pc and phone is not possible… i plug it to Kies again but it does not recognize it… any ideas?

  30. Jayce my suggestion is to put warnings and possibe issues encountered on your post to readers who plan on using your guide to flash…

    I emailed a Samsung representative about flashing procedure… and the responce is:

    Upgrading KIES will wipe out information on your phone (unless you back up using KIES) but in most cases, upgrading firmware USUALLY wipes out your installed Apps. You need to find and reinstall those back; KIES backup can’t save your Apps.

    From my experience:

    1. Best to flash after restarting the computer (and close any automatic running programs after a fresh boot).

    2. If USB error not detecting phone. Remove USB cable – reInstall drivers from KIES, after reinstall, close KIES, terminate all running KIES process using Task Manager, then replugin your device connected USB. Once drivers fully loaded, reboot computer and attempt flashing.

    3. Disable Antivirus (particularly those with firewall functions) and other kinds of Firewall before attempting to flash… reboot computer after disabling AV/Firewall is recommended. After you’re done flashing, you can re-enable them back. (with ODIN this is particularly important because I encountered rooting process stop halfway because firewall stopped the process somehow, after I disabled the firewall – re-rooting was fast and painless. I suspect flashing with firewall/AV on, will do more damage and may likely brick the phone even if the instructions were followed correctly.)


  31. Hi Jayce,

    I’m having problems with upgrading my phone through kies. It’s telling me that this version of device cannot be updated but I know it can because there have been new releases already and mine is stock. Everything is stock and not rooted.

    This is the necessary information for you to help me, I believe.

    Pda: I9100ZSKF1
    phone: I9100XXKE4
    CSC: I9100OZSKE7
    kernel: jdk@jtj-desktop #6

    What might be thee problem as I just brought this home from the store and didn’t do anything to it yet. Unless thee people at the store did something and I didn’t know about

  32. hye friend. im a malaysian and i would like to ask if you now when the 2.3.4 and 2.3.5 official firmware update through kies is available in malaysia.

  33. Hi wanna ask. I just updated my firmware then i got this problem whereby my phone dc from the pc connection when i try to access the file like usb pendrive way. It just disconnected then reconnected back. Help pls.

    Android ver. : 2.3.3
    Baseband ver: I9100DXKI1
    Kernel ver: #2

  34. oh btw i just saw there is the MTP application runing there…i plug in n sync the music then it device shows disconnected on pc then reconnected back but on the phone the mtp still there

  35. jayce..this is the real official step to update the version of android?
    Im samsung galaxy s2 version i9100DXKF1 2.3.3..i want to update but dont know which is real to update..i saw alot is root using odin..i want official update 1..i dont know void warranty yet..and should i update for my current version? Please guide ^^

    • Yes, Samsung Kies is the official way to upgrade firmware. Or you can go to Samsung Service Center and ask them to upgrade for you.
      Upgrade or not is up to you… πŸ˜‰

  36. ya i know that is up to me but i worry that after update is not good? because some things no update is better than updated..u get what i mean?

    • Yes, I got your points. You can always downgrade with Odin (unofficial way) if you don’t like it.

      Personally, I did not use Malaysia firmware because it is still Android 2.3.3 even on the latest one. I am using XXKI3 (Android 2.3.5) Europe firmware now. So far so good.

  37. Baseband Version – I9100DDKE2, Kernerl version – – I9100XWKE8 – CL214845 root@DELL101#2, Build Number – GINGERBREAD.XWKE8

    I tried software updates, connecting to server and later connection failed. Is the above the latest or how can i upgrade

  38. Hey Jayce,

    i just tried to upgrade my sgs to 2.3.4… and i thought i succeeded until i noticed it didnt go into download mode the entire time..

    Yes, i have seen one of the first comments with the same issue but i dont want to risk putting it in download mode manual in afraid ill brick the phone some how..

    now there is this other thing.. just today im experiencing connection problems and yes i know i should probably contact the samsung support, but then again all of a sudden i also dont see the newest update anymore? which i did after my first attempt of updating failed. its probably a problem of samsung kies

    but now i would like some advice, i would like to upgrade it through Odin yet no experience but i did alot of research just to be safe not to brick my phone (last option since im greedy for the firmware upgrade haha). Then again i dont find the official 2.3.4 gingerbread firmware upgrades only leaks and beta versions any recommendations where i could get the official one so i can start with odin without having the troublesome from kies??

      • current firmware is 2.3.3 TDCKF1
        the new update in Thailand i assume its 2.3.4 not sure.. i cant open my Kies anymore at the moment so i cant clarify for which update i got.. but i got one and it isnt allowing me as said above

  39. Hi Jayce,

    In fact, I’ve completed until the step you mentioned
    “Samsung Galaxy S2 should boot into download mode during this stage. As usual, don’t disconnect the USB cable.” Yes my Galaxy S2 are in downloading mode for an hour freeze there. Iz it a normal progress? I upgrade through samsung kies once the Galaxy S2 has turn to download mode my device are auto disconnected from samsung kies application. any idea? please reply ASAP

  40. This is so frustrating.
    the steps seems so simple in your description. while downloading the 300MB file, the phone did not went to “download mode”, its still the same usual screen.

    after finish download, the notification ask to reconnect the phone again. remove and reconnect and nothing happens after half an hour. CPU usage remains idle and low. i dont think kies is upgrading the firmware.

    redo the process again, and it starts to download the 300MB file AGAIN?! WTH?
    fine, let it download and wait again, same issue.

    stupid firmware, sumore i have no idea whats the new deal with the firmware. i’m just hoping for the better battery life.

    this KIES sucks till the max.
    just look at the comments in this post, i think more people fail than they actually succeed.
    dont think its worth the trouble anymore.

    gave up on the stupid firmware upgrade. and unstalled KIES.
    (stupid and buggy crap piece of junk ware!)

    sorry for the rant
    thanks for the info though, i do enjoy reading your blog.

    • Hi MTX, like you, I had failed in my attempt to update via KIES, numerous times. Finally I succeeded in updating to the latest ASIAN firmware, KH1, which was nothing great. Still 2.3.3 Only keyboard has Chinese option. I succeeded by updating using another PC, with no antivirus or firewall installed previously. My previous PC had Avira and Comodo installed. Even though I had disabled them, somehow some of the settings (of which till todate I have no idea what) had seemed to block the port for update via KIES. So using the “new” PC I updated smoothly, without any issue. 12 minutes update into the phone. Update file download, almost 1 hour.
      I have now progress into updating my firmware to 2.3.5 XWKI8, using ODIN. Next I guess I will root but right now, I do not really have the need to root. What I am illustrating here is, the more we do it, the more confident we get. Whilst that is progressing, do enjoy the journey and the phone.


      • LOL!

        so all the trouble just to have chinese input?
        ridiculous, i have google pin yin and baitu input, which works perfectly.
        a firmware update just for this feature is way too overkill.

        glad i unstall that crapware kies.
        will install it back when the ice cream sandwich is available for S2, if it happens.

  41. Hi Jayce, AlFlo back again with a question. I noticed you are using XWKI8 EU ROM. I have also updated same. Besides the new blue over scroll glow, which I like, I experienced some lag in some of the application startup. It happened intermittently. Sometime lag, sometime not.
    Did you experience same? I do not experience any real gain in battery but I cannot tell really, as I am still tinkering around with the phone alot and that takes lots of juice from the bat, I guessed. Your experience on the XWKI8?
    I also personally believe that when one gets settled on the usage of the phone, (ie not so much tinkering around and changing this and that), battery will logical last longer.
    Anyway I enjoyed visiting your forum for updated info and advise.


  42. Jayce,

    is it mandatory to fully charge cell before upgrade from kies??

    as i can see, when i connect it to my laptop usb, battery starts charging automatically.

      • Thanks alot Jayce,

        I have upgraded my galaxy s2 india version to latest version through kies.
        the issue of “preparing for component upgrade…” hang status is related to usb broadband. I tried this time with landline bb…all went fine as per steps mentioned in ur article.


        • hey guys…m facing the same issue…”preparing firmware upgrade components”…no progress in the updating process from thereon…please help me with a solution (step by step if you can..pls)..

  43. I am Upgrading my samsung firmware Through Kies after 50% of firmware upgrade Progress it is taking More than One Hour…What is the Maximum Time it will take to complete Upgrading??

  44. Hi there I am trying to upgrade my firmware on my S2, but for some reason when I try to back my device up it just stays at 0% and the bar keeps moving. Been over one hour now and will not back up even 1%. Just says ‘preparing …. 0%’

    any ideas?


  45. Whats the crack with firmware? I live in the UK and have jsut recieved my SGS2 and I’m wandering if there are any updates. According to Kies, I’m on:

    PDA: KG2
    PHONE: KG1
    CSC: KF1

    (TMU) < I think it means T-Mobile UK

    and that is apparently the latest. I also read somewhere that certain networks don't dish out firmware upgrades to devices, I had a Samsung Galaxy Portal before this and was forced to root because T-Mobile didn't hand out the eclair update. Any insight?

    • Mine is Malaysia unit. Still stuck at Android 2.3.3 while other region already got 2.3.5. Anyway, I am using custom firmware now. Not an issue to me. πŸ˜‰

  46. Hi Jayce,

    I have Samsung Galaxy SII and i have got the new firmware upgrade. So i decided to do the upgrade. First i backed up all the datas and the i started the upgrade process.

    The download process is smooth (since i have a 4mbps connection)
    Phone restarted and initiated the download process and completed
    Once completed, Kies notified me to unplug the data cable and restart
    Then my phone automatically restarted and then i checked the version, it still shows the 2.3.3 version instead of 2.3.5.

    Please assist me on this issue.


  47. im very noob at it..i dont even have samsung kies. how to install? >.<
    i using my samsung galaxy s2
    version 2.3.3
    baseband version: I9100DXKF1
    Build number: Gingerbread.XWKF1

  48. i not dare to root..i know root is very good..alot advanatges than original version..
    I wan for my phone is heat issue + Battery last more long more good + Games can play all

  49. hye jayce..i’, from malaysian..i juz follow the step u gave above, when it start download a firmware, it freeze when it reach 55%…i wait 1 hour and nothing change…so i disconnect my phone from computer..i thought that i fail to upgrade it, but when i check baseband and kernel it show GINGERBREAD. DXKI2…any comment from u?

  50. Hi, im having one issue with KIES that really pisses me off. People say “dont use odin when you have official kies” but damn thing is broken and I have no idea where to download KI4 firmware to update it via Odin anyway….
    So my problem is that when I connect my phone to PC it works ok, I can browse it as removable device, its detected as GT-I9100 by Windows 7 (32 bit).
    Kies detect it ok, backup is working but firmware update doesnt.
    It say that there is new fw for my phone, I answer that I do want it but when it download firmware update components, kies drops connection with phone, components reach 100% download, kies then reconnect to phone, again asks about upgrade and that goes on and on… Rebooted everything, switched to TW, disabled lock screen and what not.
    So any info is much appreciated, or instruction where to download official firmware kies is offering me and flash it with Odin instead…
    Kies is offering me this as newest:
    Current one is
    Baseband version I9100XXKE7

    Thanks in advance

  51. Hi there…to start off..great website!

    I am also having issues with Kies and firmware upgrade. My phone does not go into the download mode mode as you suggest. In the main KIES window in the background, i can see that the KIES is attempting to reconnect but does not connect. KIES can only connect to my ph after I dc the cable and attach it again. I am using Windows 7 with KIES installed from the Samsung website. I have never rooted my ph. Is odin the only way out?

    • Ok….after trying for the 4th time, the upgrade has gone thru! Not sure what I did to change anything…maybe it was simply a nw issue but not sure.

  52. it takes 48 yrs to upgrade. tried it several times progress till 38% then it will disconnect or error by itself. what’s the problem with that?

  53. Hi , Jayce ,
    Need your advise , i try update my s2 , but when plug thru kies , the info GT-19100 DOES NOT SUPPORT FIRMWARE UPDATE . WHAT SHOULD I DO ? THANKS awaiting for your advise .

  54. Hi i am using 2.3.3. baseband version i9100dxkf1

    kies version

    sorry not familiar with android yet , just switch from iPhone , android really help in work .
    thanks awaiting for your kind advise .

  55. Kies tells me when trying to connect. “Cannot start service on the device. Please disconnect then reconnect the device.”
    Yesterday I got this message, after trying to upgrade my device software, it still persists. I will try to un-install kies and re-installing.
    I will keep you updated, as to my progress.

    • Oooppsss… it looks like sammy s 2 device driver is not loading when you plug your device. The MTP device driver is not initializing on your samsung galaxy s 2 when you hooked it up into your PC.

      When you connect your sammy to your computer, does your device’s display changes and says something like “do not remove…” – this means that the MTP driver is loaded and it’s communicating to your computer.

  56. Hi Jayce,

    I was trying to download the latest firmware via KIES but it always failed at the “Firmware Upgrade Process” at 0%, I saw on one of your posts about updating usine the, power off, press volumes down + home + power.

    I pressed the volume up when prompted, my screen now has the Android man, Odin Mode in red, Product name: GT-i9100, Custome Binary Download: No, Current Binary: Samsung Official.

    below the android man it says Downloading… then under that do not turn off target.

    It has been like this for 30 mins, how long will this take? I am not connected to my PC, should I be?

    Your advice would be greatly appreciated, thanks in advance.



    • Samsung Kies will make your phone to load into Odin download mode when upgrading firmware. You can load Odin download mode with those combo keys too. But it does not do anything until you connect it to Samsung Kies or Odin to upgrade firmware. So just turn off phone if no firmware upgrade is in progress…

      • Hi Jayce,

        I was not connected to the PC when I did the volume + home + power, should I turn my phone off and try again via KIES firmware upgrade until it works or just leave it with the screen as described above?

        I just tried connecting it to the PC but KIES can not see the device.

        Just wondering if it is actually doing an upgrade (slowly) or if it has frozen, the screen looks like below.

        ODIN MODE (in red)
        PRODUCT NAME: GT-i9100


        Do not turn off target!!

        The phone is warm behind the camera so it feels like the processor is doing something but it has been almost an hour now so just a little concerned.

        Thanks again Jayce.

    • Hi Dom,

      Yes you should connect your SGS2 to your PC with Odin loaded on it so that it can download the latest firmware via Odin. If nothing’s happening then yes turn off or reboot your phone and wait a few days or week until an available firmware is available for your mobile.

      I have tried Odin only on my Samsung Galaxy 5 but haven’t on my SGS2 until my phone’s warranty runs out.

  57. Hey there, I’m having a problem. It’s all good, except i dont have space available on my PC, and i mean on my C: . It says it needs 3gb of free space which i do have on my D:. So my question is this: Can i download that update on my D:? Cuz i really want this new update. Thanks

      • Can’t clean that much space cuz windows is eating most of my C:. I have tried to uninstall Kies and install it on D:, thought that would do the trick, but no luck. I guess i should contact Samsung support, or go to a friend’s house.
        Thanks anyway

  58. help anyone ? ok so i tried to do the odin beta way… and it said FAIL! on my PC on the last step … so i removed the bettery , my phone was soft bricked, i gave it to samsung and they fixed it… now i say the version at ” about phone ” 2.3.5 and i cant do any of the things this vid did… and i also tried to press on ” Software Update” it says ” connecting to server ” then ” connection failed ” ! πŸ™ i really need hel :S

  59. Hi jayce,

    i am from India and i have updated my s2 to i9100xxk13, android 2.3.5 through rooting my phone with odin software. now when i try to connect with kies it is saying that your device does not support software upgrading via kies. what can i do to solve this problem??

    version: 2.3.5
    baseband version: I9100XXK13

  60. Hi, I have a problem using Kies software. When ever i tried connecting my Galaxy S2 using usb to my pc, the Kies will showed the status ‘ connecting…..’ but it will remain the same for hours without anything happens. I tried re-install Kies a few times but the same things just happens. Kindly advise. Thanks!

  61. Thank you very much for these details, these means a lot for me.
    Is there any process where i can backup my apps because i have some game played all most to the end and i don’t want to loose it.

  62. Is it normal that after downloading the firmware in my PC which is connected to my phone, a prompt in my CP’s screen “Downloading…Do not turn off target!!? I mean is this part of the downloading process or my phone is hanging and needs to be restarted? TY

  63. Dear Jayce.
    I’ve tried to update my galaxy sII for quite a while now. It worked the last time (few months ago) but now, when the updates har been downloaded to Kies, it tells me that i have to accept something about user account control. If i don’t accept, it can’t continue. The only problem is, the prompt/popup-window never shows. Then ten seconds later i get a message that kies did not recieve an acceptance, and therefore has to close… Do you have any idea what this is?

  64. hay bro Jayce, i from indonesia. my SGS2 still on 2.3.3. please give me info about available firmware update for High version. i using Ubuntu, i cannot using kies in ubuntu. i contacting samsung with no respon.



    thanks.. sorry if english not good.

  65. Hi Jayce,
    I returned to the original ROM by Odin (, and when I plugged in Kies, connected, and tells me “your device does not support upgrading firmware”
    Which could be the cause ?

  66. Hi, Im from malaysia. I have updated my firmware using KIES to the latest one, but the andriod version is still 2.3.3.
    curent firmware for my phone: PDA:KI2/PHONE:KI1/CSC:KH1(XME)
    it’s normal for this?

  67. gs2 is original firmware..i never updated it..
    my version is as it the 1st version?
    KERNEL VERSION – root@DELL106#2

    i would like to update..but manually update i see alot ppl facing is it update will be better or worst? is ‘MAY’ mention the version latest?
    what is latest version detail?

  68. hi,,,i purchased new samsung galaxy s2. i opend the box when i reached home. to my surprise i found that screen stuck on samsung galaxy s2. soon i went to showroom. there he routed me to warranty claimer, there they kept the piece for 3 days and later called me. they told me that it has some hardware defect and cannot be rectified. also told that it doesnt cover under their warranty rules(as warranty is only for software) can u guide me how to follow up now,,i believe may be software upgradation may help out, thanks.

  69. hi. i have a galaxy s2 with stock version
    – Base band version : I9100DDKE2
    – kernel version :
    – build number : GINGERBREAD.XWKE8

    i connected through kes and it told me i have a firmware update downloaded the firmware but as soon as my phone starts to update, it gets disconnected and kies crashes.. (i have the latest version of kies –
    plz help

      • tried it.. still the same problem….thanx nyways… another thing… whenevr i connect to my computer through the usb (not the mass storage mode) and i try transfering data, d applications hangs n and it suddenly restarts. i can only transfer data while connected through data mode

  70. I have upgrade the firmware on my Samsung Galaxy S2 from 2.3.3 to 2.3.4 with Kies and that was all, it didn’t upgrade to 2.3.5 Kies it says i have the latest firmware. Based version is: XWKI4. I have upgrade Kies. My phone is unlocked.

  71. Firmware updates would been easier if they just put it in the android market….with a click newbies could download and automatic install….

  72. sad….i am upgrading my firmware for my samsung galaxy wonder….unfortunately, it prompted me to firmware emergency recovery…..waiting…waiting and waiting…….connection failed…redo again….

    in my phone, “firmware upgrade encountered an issue. Please select recovery mode in Kies & try again”

    now, i not even can on my phone….sad and frustrated,…should not upgrade firmwave in the first place…

    can you recommend what should i do now? thanks

  73. Hi Jayce, trying to upgrade my firmware for the Galaxy S. I get as far as the Firmware upgrade screen, where it tells me that it’s Downloading file for firmware upgrade. That’s got to 100%, but now just hangs for over an hour, with the phone not rebooting or anything. Any suggestions please?

  74. HI
    MY updation failed due to some unknown error…plz help
    Stopped working

    Problem signature:
    Problem Event Name: CLR20r3
    Problem Signature 01: gt-s5570.exe
    Problem Signature 02:
    Problem Signature 03: 4e13ef03
    Problem Signature 04: FirmwareUpdateAgent.Common
    Problem Signature 05:
    Problem Signature 06: 4e13ef03
    Problem Signature 07: 1fd
    Problem Signature 08: 0
    Problem Signature 09: System.IndexOutOfRangeException
    OS Version: 6.1.7601.
    Locale ID: 16393

    Read our privacy statement online:

    If the online privacy statement is not available, please read our privacy statement offline:

  75. Hi, I seem to have a similar issue as do many others with the unreliable Kies software, I have tried (without success) to make a full backup of my Samsung Galaxy S2 GT-19100. Every time i attempt to run a full backup connection apparently fails and the backup terminates, this is not just on one PC but have tried it on my new 3Ghz win 7 PC and my laptop and still always get the same error, If I attempt to add the “Miscellaneous content files” to the backup selection, the backup sequence repeatedly fails to complete. I can however run a backup if I only select the other options, but leave media and Miscellaneous content files unselected.

    I am not worried about backing up media files but I am concerned about what content I might lose because I cannot backup ‘Miscellaneous content files’.

    Q: Do you know why I cannot backup Miscellaneous content files?
    Q: Will I lose files and/or applications if I perform a firmware update?

    Any help on this matter would be really appreciated?
    I like my phone and certainly do not want to brick it because of Kies crap software.

    • A: No idea. Please consult Samsung Support.
      A: No normally. Most of the official firmware is non wipe version.

      The best way – Root your phone then backup with Titanium Backup.

  76. Thanks for your reply, however the advice to check out Samsung support has come and gone with no real help at all, Kies will not back up the ‘miscellaneous content files’ regardless of system or settings, the phone was new out of the box, in a two year guarantee so I cannot and will not Root it yet. If you can answer this one question, I’d be more happy to continue with doing the recommended firmware update, Q: At what point would the update cause corruption to the existing firmware if it failed to successfully complete, and is any step of it reversible if the update fails. ie probability of actually bricking the phone?

  77. Hi Jayce,

    I have updated my Galaxy S2 using Odin with Android 2.3.5, as you described on your article, and I used the files linked on your page.
    After the update, when I connect the phone with Samsung Kies, it tells me that “Your device does not support software upgrading via Kies”. Do you have any idea why? I would like to have the phone update-able via Kies, since I’ve heard that Android 2.3.6 will be officially released by Samsung via Kies, and additionally I also heard that even Android 4.0 might be released for Galaxy S2, officially.


  78. Well I decided to go ahead with the firmware update…
    The download took no more than 10 minutes
    Transfer to phone took just two minutes
    Installer started successfully
    Handset rebooted, and restarted successfully
    MTP application requested a restart and completed successfully
    Tested phone and all installed applications and software 100% OK

    The newly updated firmware Android 2.3.5 (Gingerbread BOKK1) works just fine, and there seems at first glance to be some pretty cool updates, let’s hope the battery consumption issues have been addresses too.

    I’m now a happy bunny, and thank you for assistance, keep up the good work.
    Merry Christmas and a prosperous new year!


    After updating my firmware, I am now able to backup all features on my handset and all the previous frustrations and grief as a result of this was down to firmware issues. Not Samsung Kies software. Now I could not be happier, I have full backup capability and my much loved Samsung Galaxy S2 works better than ever!

    Thanks Jay for your help on this matter…


  80. Hi,
    when I connected my Galaxy S2, Kies shown that a new firmware is available.
    I decided to update and followed the on screen instruction. The PC started to download.
    After more than 3 hours, the firmware upgrade progress is 1%. I think something is going wrong.
    Can somebody tell me what to do ?
    Shall I disconnect the Galaxy S2 from the PC ?

    Now, Galaxy S2 screen displays ….. “Downloading …. do not turn off target”

  81. Hi,
    Kies show me too about firmware update.. Then I did it.. But not it shown as version 2.3.4.. It still show 2.3.3.. So what to do now ??

    Thank you.

  82. Hello, I have a big “problem”, i bought one Samsung Galaxy S II, I-19100G from China (Sam’s Club-Wall Mart) and unfortunately i did not know that has no Android Store and the logo on the phone is China Unicom (when you turn off). I live in China so i need the Chinese language for the bank messages and other stuff but i want to install the Hong Kong version, can anybody help me with this situation ?
    My Galaxy information’s are:
    Samsung Galaxy S II, I-19100G
    Model Number: GT-I9100G
    Android Version: 2.3.4
    Baseband Vesrion: I9100GZNKI1
    Kernel Version:
    Se.infra@SEP-67 #2
    Build Number: GINGERBREAD.ZNKI1

    PDA:K11/PHONE:K11/CSC:K11 (CHN) and now the Kies asked me to upgrade to PDA:K12/PHONE:K12/CSC:K12 (CHN) but i did not do this.

    I was a Nokia user since 1996 (until 2 days ago) and now i bought the Android, i made a very good decision.

    Thank you all for your support.

    • Don’t install any I9100 firmware / kernel on your China I9100G. It will brick your phone. I am not sure that Malaysia I9100G and China I9100G are the same or not. Try to consult others at XDA website.

      • I tried to open one account on XDA but i cannot, they say i am a “spammer” πŸ™‚ i used Astrill VPN to see the youtube video at the registration and maybe that’s the reason, i sent them one email, maybe they will reply me about this problem. Yes, i will not install any firmware until i will be 100% sure that will not damage the phone. I contacted also the Samsung service Hong Kong, if they will agree to install me the HK version i will make a small trip to Hong Kong.

        Thank you for your support.

  83. using kies, with the handset connected, select from the top menu BACKUP/RESTORE and choose backup, tick all options to be backed up then click backup, if you have a lot of files in mass storage it might take quite a while to complete.

  84. hey i was unable to update my samsung galaxy s2…
    wen i check for the updates it shows connecting to server and then connection failed.. can u help me how can i update my galaxy s2 currently i had android 2.3.3

  85. HELP!! When I start the firmware upgrade process, the phone gets disconnected automatically and the firmware upgrade was failed because connection to the phone was lost. But afterward, the phone automatically reconnects. How can solve this problem??

  86. hi sir,
    i bought s2 3 days before,am facing a problem that, it gets hot in the back (on cam) while using internet,gaming,gps etc. my firmware is 2.3.3 . sir pls help me.

  87. After the download is complete, in dialog box its like Preparing firmware upgrade components as its shown in the abo image, but that doesnt even end, i mean it doesnt show how much % is completed. Its never ends ! please help ! Thanks πŸ™‚

  88. Hi Jayce,

    How can I update my SGS2 firmware from I9100XXKG1(KOR) to DXKL3? I’m from Philippines, my KIES says “there’s no available updates on your firmware”. I have already downloaded the latest updates of KIES but still I can’t update my firmware. Help me please.. Thanks in advance..

  89. Hi, sorry if I repeat some earlier entries, but so far I went thru, I didn’t find solution. I have problem with upgrading my galaxy s2 firmware. In samsung kies I have option to upgrade phones firmware but when I press update and agree to terms, start upgrade, download process completes in less than minute!!. It’s bit odd i think. After that some window brings up for second, I’m not being able to reed whats on it because of short appearance, and keis shows that phone is disconnected and than automatically reconnect and offer me the same update again. It’s so annoying… The same again, download till 100% in less than minute. My internet connection is not that fast. I think that actually there is no download.. Please if anyone know how to fix this I be glad to hear solution. Thanx

      • is the version of my samsung kies. It’s my second installation of samsung kies, when I couldn’t update my phone I reinstalled samsung kies, but that didn’t helped.
        I also haven’t rooted my phone or anything, basically only software in my phone came from android market. I also reset factory settings (settings>privacy>factory data reset> reset phone> erase everything) but that also didn’t helped. I’m not in usb tethering mode, original samsung kies mode.

        • Don’t know why and how but 10 minutes ago I upgraded my samsung galaxy s2 from samsung keys. It just worked! I guess a little patience to try few days later is good thing.
          Bdw, thanks for trying to help, You got great webpage, keep up the good work. πŸ™‚

  90. my galaxy s2 is not being recognised by kies, It displays connecting and nothing happens.
    i am using latest version of kies
    i want to upgrade my firmware, can i update it officialy without using kies?

    • Samsung Kies is official software from Samsung. You can get support from Samsung officially. Why not get it from them? πŸ˜‰

      Personally, I use Odin software to install firmware. No bug at all compare to buggy Samsung Kies. Else you won’t see lot of version of Samsung Kies coming out from time to time…

  91. I am trying to update my samsung galaxy s2 through Kies but i get the message that there is no update to this device. I installed Kies both on mac and windows 7 and i got same message. Any one could detect what might be the problem?

  92. hi jaycee,

    i already updated my sgs2 from 2.3.3 to 2.3.6 via samsung Kies. But, new update make vibration indicator appear at status bar near battery indicator. very messy when lot of notification such msg,,fb notification came in. because in last 2.3.3, the vibration indicator did not appear even i’ve set the vibration in ‘always’ mode. how to remove it even vibration set to always??

  93. hi

    i cant able to update s2 firmware through samsung Kies. i have connected through Kies its showing u have new firmware version is available and then i press the button to update, and then check I have read all of the above information. Finally, click Start to upgrade. download complete 100% the second window preparing download after that my windows 7 has stop working to update firmware to close process. i have rooted my mobile. how do update the latest official firmware update through Kies. pls anyone help.

  94. Hi Jayce!

    I’m from the Philippines and I just recently bought an SGS2 that’s on version 2.3.4 and I wanted to upgrade it to 2.3.6. I have the latest version of Kies and it keeps on saying that there are no updates available. Also the same when I try it OTA, no updates available. I am using stock firmware and I haven’t rooted it. Any help would be greatly appreciated. Thanks! πŸ™‚

  95. hye jayce!

    i tried to install latest firmware 2.3.6 for SGS2 I9100G from KJ2 to KL3 via KIES, but in the middle of upgrading process somehow there was an error “failed to convert to upgrade mode” appeared on the KIES. at the same time, the phone screen showed “downloading, do not turn off target”. i’ve 2 questions:-

    1) when this android security warning appear on screen, what are the proper procedures need to be taken? is it ok if, i just disconnect the usb cable; take off the battery and put it back then turn on the phone?
    2) can i use oden to upgrade the firmware for I9100G?

    thankyou πŸ™‚

      • hye jayce! i’m here again. one more question, if i upgrade the firmware by using ODIN, will this void the warranty? for the installation by using ODIN, do i have to uninstall the kies software from pc?

        thank you for your response.

    • Hi, not trying to hijack this comment but I have the EXACT same problem, I9100G, trying to upgrade from KJ2 to KL3 via Kies. The download goes fine, but when it comes to installing the new firmware, it stays at 0% while the phone shows “downloading, do not turn off target”. Eventually the “failed to convert to upgrade mode” notice comes up and my phone gets disconnected from Kies but the still shows the same screen.

      Now I’ve checked that Kies is the latest version, I’ve restarted the phone AND computer (I’ve tried multiple times over the period of a week) and it’s always the same. Can you offer any suggestions as to what might be wrong?

  96. Kies tells me there is an update. I connect my phone. I go through the process of agreeing etc. Kies downloads the new firmware and prepares the phone for installation. The phone disconnects, reconnects and then original “there is an update available” message reappears. I’ve been through this cycle a few times now.


  97. hi,

    i have samasung galaxy s2 i9100G, g-model.
    could you pls tell me….can i update my firmware through kies for the G-version????
    and is G-version not good wrt normal i9100 version?????

  98. I am facing problem while updating my s2 via kies ..
    when i connect my phone it shows that firmware update for your phone is available
    i started updating my phone
    kies downloaded all the necessary files for my phone and start installing ..
    but at about 70% it stops and a message appears..

    PC failed to recognise the mobile phone.
    Please follow the guide below to try again.
    1. Disconnect the mobile phone from cable, remove the battery and reattach the battery.
    2. Press the power button.
    3. Make sure the mobile phone has been turned on completely.
    4. Reconnect the mobile phone to the cable and start the upgrage.

    i tried many times but same thing happens ..
    please help me what should i do ..

  99. i am upgrading my firmware via samsung kies samsung galaxy mini.but the firmware upgrade progress keep 0% and i never press any it the firmware thing hang or the internet too slow?

  100. Hi Jayce,

    Heard that Ice cream sandwich (Android 4.x) had been released for SGSII on Dec last week of 2011. Did you got the update? What are the new features in it?

    Also, I have updated my SGSII to 2.3.6, but I don’t think there’s any significant improvement on Performance and other stuff. What do you think of the update?

    Thanks for your answers… And appreciate your effort for keeping up this web page.


  101. hi jayce,my sgs2 upgrade latest ics firmware I9100XXLP2_OXA ,my problem android market can’t be connect,server error come out.but I9100XXKPA_OXA,this firmware no problem like that.plz help me……

  102. how long is the download mode will be taken?on the KIES,it’s still “connecting” while on the sII screen is writtern “ not turn off the target!!”.is that normal?this is my first android and my first firmware upgrade,so im still kinda confused.thanks

  103. hi again jayce, yes i cant update via kies even if kies offers me new update, is my kies update going to download via samsung philippines server? samsung support philippines also said that i check update via fota if there are available update here in the philippines but by now ther is no available update yet. thanks for the advice. one more question is there any other way to update so that i would not depend on the philippine server?

  104. Hi,
    I think it is probably late already to ask this.
    Does upgrading the firmware actually affect any data on the phone???
    Will applications be as they are?? will app data stay the same or will it be wiped off??
    and media like videos, pictures, screenshots, voice recordings,
    and personal data like contacts, SMSes, chat records like whatsapp, yahoo, etc.
    Will any of it be affected after the upgrade???

    The problem is, right now as i speak my Galaxy S II is being upgraded and i haven’t taken any media or app data backup. i have however backed up my contacts. I am extremely worried that my data will be wiped off forever and wont be recoverable.
    Please let me know at the earliest if my data would be affected. Perhaps within these few minutes so i can cancel the update if needed!!
    If it does wipe off most of the data, it would be a good idea to cancel this update right away.
    Awaiting your reply.

    • The usual answer quote from Samsung Support ~ Update Samsung Kies to the latest version. Then try again. If still cannot, send it to Samsung Service Center. πŸ˜‰

  105. I just downloaded kies 2 and connected with the device and its upgrade section, it says my device does not support software upgrade. i am from uk. any ideas @? i didnt root before. my device is galaxy s2 gt i9100 and current version is 3.2.3. why cant i upgrade to 3.2.5?

  106. hello there,I have read all what you said..and I have one question,after i start kies should i connect my phone via usb in download mode or how…plz reply me,because I really want to upgrade my phone

  107. hi jayce, i have the latest kies intalled. My S2 is 2.3.3, i wanna update to 2.3.6. The problem i have is, my kies wont show up a “firmware upgrade” button as what you attach above. Advice please. Thank you in advance.

      • I have upgraded my old one using kies, and there was no problem i got while upgrading process. But now, my S2 has been replaced several week ago (overheating issue). All what i got is a completely new unit. The problem above come up then.

        yes, iam using official firmware.

  108. I am trying to update the firmware on my Wifi 10.1 Galaxy Tab. I dowloaded ver 2 Kies and connect. Goes through first few steps but I get a pop up that says to disconnect all other devices from PC except the Tablet. Nothing else is connected except network printers. It says press OK to continue. Press OK and the same message pops up again.

    Do I really need to disconnect network printers in order to update my Tablet? Seems unrelated…

  109. Guys I have just updated my gs2 like Jayce told us,from 2.3.3 I’ve jumped to 2.3.5 Its awesome,I have just followed the procedure…and try to make the update in the midnight or in the morning because the wifi connection is more strong

    • After 2 days I have updated my phone,..It seems like my homecrenn when I scroll it its just a little lagy,and battery life has a shorter life,the update should improve my phone but there is no improvements…the best firmware is the stock firmware……
      Maybe the ICS will be better,but Im so sceptic

  110. Hi Jayce,

    I need to upgrade my Samsung Galaxy S2. Im from India. I have downloaded Kies but how to upgrade my Samsung Galaxy S2.


  111. hi jayce. just wanna ask, im still using 2.3.3 version, never updated b4. But the battery life doesnt seem good on my samsung. some said after updated using kies to 2.3.5 the battery life last longer but some said battery life becomes shorter. i was wondering is there any battery imrprovement at all and by how much? ty jayce.

  112. Hi Jayce,

    My Samsung Galaxy S2 showing Build number GINGERBREAD.DZKJ2 and Kernel vesion se.infra@SEI-30 #2. Is this the correct version?

    I am having problem with Kies 2 USB PC Sync.

    Please help! Thanks!

  113. i disconnected my usb cable during upgrade and the mobile is not switching on,what should do to recover it back to its previous state?

  114. hi Jayce,

    i try to update my samsung galaxy s2 firmware, but it failed, there have and error message always come out when i try to update ” Failed to run firmware upgrade unknown error occurred.

    can you help me on this?? thank you

  115. well, maybe this is a dumb question.. but consider me as a newbie here >.<

    I rooted my device
    current os is 2.3.4

    I have nexus one with 2.3.6

    so, I think I could upgrade my sgs2 (2.3.4) to 2.3.6 too ?
    and actually I havent tried your tutorial up there,
    and the question is :
    – is there any crash/something bad would happen if I upgrade my rooted device ?
    if yes, before it happens, should I unrooted the device, then upgrade the version, then rooted it back ?

  116. hello~ what’s the latest version of kies and how can i download it? my version of kies is 14_18
    it connects to my mobile which is gamsung galaxy s gtI9000 but it can’t read the firmware version..i dunno why πŸ™ i dunno what to do// i wanna update to gingerbread coz im using froyo 2.2 which is sooo laggy:((
    pls help me thanks..><

  117. i did download that and it says that’s the latest version? btw, do you know what’s the easiest way to fix lag? thanks>.<

  118. I have a Galaxy s2 and cannot connect to Kies as it says must use PC studio so downloaded and installed to pc but doesnt recognise my moblie.
    When connecting to Pc studio it says to touch pc studio on the phone but to connect but that function does not show up on the phone.
    Im using win 7.
    Any ideas?

  119. Am from India and own a samsung galaxy i9003 with Froyo2.2.1. Tried upgrading it with kies connected to my windows 7 PC. When the kies software prepares for firmware upgrade, it returns a message that “firmware upgrade has stopped working” and the kies software hangs. Pls advice what to do…

  120. Hi, I was wondering, can I download the firmware update first through Kies,.and perform the update later? With 200 mb to download, kinda scary if the updating disconnected halfway.. Thanks!

  121. hi! i’m using samsung galaxy s2 in albania and when i conect the phone with the comp via kies it says “your device does not support software upgrading via kies” what can i do to recive the official update for ics 4.0? i’m using 2.3.6 stock version. pls help!

  122. Jayce, my Samsung Kies shows that ” Your device does not support software update via Kies”. Previously, I updated andriod 2.3.3 to 2.3.6 using the phone software update itself without using the Kies. Now since the ICS is out and when I plug my phone in it shows that msg. What should I do?

  123. when can i find Samsung support center because i only found the us version and its useless for me? ca you give me a link about it? thanks

  124. Hi Jayce,
    I wanna ask that I plug-in my phone to the computer using USB cable to check whether there is a update for my GT-I9100 or not because my phone’s Android Version is 2.3.3
    Im trying to update to ICS…
    but when i opened samsung kies on computer it says that “Your device does not support software upgrade via Kies”
    So what im gonna do? i want ics so badly D:
    and i didn’t rooted my phone…

    About phone :
    -Android Version : 2.3.3
    -Baseband Version : I9100XXKE4
    -Kernel Version : #22
    -Build Number : GINGERBREAD.ZSKF4

  125. Ok so I downloaded the firmware upgrade file(btw, the screenshots which display the back up didn’t appear on my phone). Then ‘downloading…don’t turn off target’ msg comes on my phone display. And after a while i get the message, ‘pc failed to recognize mobile phone.’ Then it suggests i take out the battery and try again but that didnt help either!
    What’s the problem here?? Please help me out!! I have tried 7 times now!!!

  126. Hi Jayce,

    I have a Galaxy s2 bought here in the philippines, already rooted the phone, and using differnt kernel, Kies wont detect any new firmware and says that i already have the latest one, can you help me on this please?

  127. Now my phone current status:
    -Android version : 2.3.5
    -Baseband version : I9100XXKI3
    -Kernel version : se.infra@SEP-78 #2
    -Build number : GINGERBREAD.ZSKI3
    -Current firmware version : PDA:KI3 / PHONE:KI3 / CSC:KI3 (TGY)

    so is this the hk csc?
    is there any malaysia csc? D:

  128. Hi. how do i know if my samsung galaxy s 2 is rooted or not? i changed korean standart into European.oes it mean rooted?

  129. Hello,

    I am using galaxy s II which was locked to virgin mobile canada. I unlocked it today but I still cannot update my firmware (2.3.3) to 2.3.6. I thought that unlocked galaxy s II can be updated via kies but got no luck. It’s still saying that I have the latest firmware (which is not true!). What should I do?

    Thanks in advance

    • Hi Raied, I don’t have locked SGS2. So not so sure that you can install firmware with Odin manually or not. Try to consult others who have the same model in XDA website.

  130. i have a problem, cant seem to find the Android 4.0 update . my phone dont find any updates., this is on a phone in norway : telenor network

  131. Hello Jayce,

    1) I have Samsung Galaxy S2 with Gingerbread 2.3.5.
    2) I have opened Kies and it offered me firmware update to the PLE or something similar.
    3) Kies downloaded the upgrade file and Samsung rebooted to the download mode.
    It says “Downloading…Do not turn off the target..

    I thought it should be for a while like 20 minutes or an hour. What can I do?
    The phone is still connected to the PC and Kies is opened, but it can’t connect to the device and it maybe logical – it’s in the boot state.

    Please guide me what to do, it’s urgent.

    • Hi Steve, restart the whole process if it is hang. Do upgrade Samsung Kies to the latest version. Then try again. If still have issue, please consult Samsung Support. Thanks.

  132. Hi,

    I have samsung s2. While following the above steps, it successfully downloads all the required files but gives an error while updating that need 3GB free space. I have removed all the apps I had downloaded and there is more than 6GB space in USB and 1.85 GB free Device storage. I guess it requires 3GB device storage but how to do that?

  133. Hi,

    I followed the exact steps as mentioned as above and my phone restarted after the upgrade to ICS. However, it was stuck on the Samsung logo for a very long time so I restarted the phone manually and it booted up correctly this time but I was still on Gingerbread.

    When I connect my phone to Kies now, it now says that I am on the latest firmware.

    What can I do to retry the update?

      • Yes I’m based in the UK and the network provider (Three) has released the ICS update. Thats’s why it appeared in Kies. Before the release Kies used to say I was on the latest firmware.

        I’ve tried doing a factory reset but when connecting to Kies, it still says I’m on the latest firmware.

        Any idea?

  134. Hi Jayce,

    Is it possible to switch from Gingerbread to Ice Cream Sandwich on my Samsung Galaxy S2? if yes, can you pls. tell me the steps in detail? Also, will it possibly void the warranty of my phone?

    Thanks in advance.


  135. hi jayce
    i tried many times but it get stuck after the Sith step
    Showing- preparing to upgrade firmware content
    and doesn’t go further.

    please tell me what to do….?

  136. Hi Jayce,

    I Have a Samsung Galaxy S2, i already do the step at above, but mine do not have backup data that step, after agree direct to prepared firmware upgrade, after prepared firmware upgrade, i stuck at Progress firmware upgrade, loading n loading…Can you tell me what the problem and what i should to do…stay for waiting or my version problem… Thank you for your, i will waiting for your email.

  137. Hi Jayce

    Could u pls help to enlighten me here?

    I tried to do the ics firmware update via Kies on Windows Vista PC, but the download keeps failing to complete. Have tried updating Windows and everything but no luck. It jus says something is causing the problem to have stopped the download prcesss to complete when it runs to 100%, any idea what that might be since I see no Windows diagnosis to the problem.

    I have already the latest Kies installed. And PC recognizes my GS2 when cable is connected.
    Location: HK


  138. My samsung kies keeps askin me to update the kies. I have updated it like 5 times and stil it shows the same that is to update kies. I have tried uninstallin n installin it again but its of no use..

  139. Hey jayce….

    i have a samsung galaxy s2 . My current info of the device is

    PDA : I9100DXKF4
    PHONE: I9100DXKF1
    CSC : I9100OLCKF1





    THANX.. πŸ™‚

  140. Hi Jayce.

    I am from Mongolia. I have Samsung Galaxy s 2 GT-I9100 with kernel version XXKI3 Android version2.3.5. but when i connect it via KIES. KIES TELLS ME THAT THIS DEVICE IS NOT UPGRADABLE. means that it is not possible to upgrade in Mongolia because it is not included in the region, however my ss 2 is international version.

    when will it be possible?

  141. I am having a problem trying to upgrade my Samsung Galaxy S II to the latest firmware. When I click on “Tools” > “Firmware Upgrade and Initialization” it says “GT-I9100M does not support initialization”
    Will this affect further attempts to upgrade my device? Is anyone else having this problem?

    Thank you

  142. My phone is not from NZ and I have been told if I try to download the new firmware it will wreck my phone as it is specifically for NZ phones.

    I have been told that if I take it to Parallel Imports they can install it for a fee of $50.

    I thought that if I could find out where my phone was released I could go on-line and download the firmware for that country, but have been told that I do that at my peril.

    Has anyone else struck this problem?

    The set-backs of buying a phone off Trademe. The guy I bought it off told me that I would not be disadvantaged in any way, as I specifically asked him about that.

    • Hi Russal, is your SGS2 model I9100? If yes, you can install any country I9100 firmware. Like mine (Malaysia unit), I am using Europe firmware now.

  143. Hi Jayce

    Mine is a GT-19100 S II, the information I got when I entered the numbers Samsung gave me where: PDA: 19100 XWK14, Phone: 19100 XXKI1, CSC: 19100 CPWKH1, Build Info.: Wed Sept 14 20:34:11, KST2011. Does any of that makes sense to you? Apparently the CSC should tell me where the phone was released, I was thinking with the letter K, maybe Korea, which they said was probably Chinese and I wouldn’t be able to download their firmware because China has all that stuff locked down.

    It was Samsung that told me if I downloaded from any site I could wreck my phone. When I tried to download the NZ up-date, as soon as it started to bring the information into my computer I would lose the connection through Kies.

    What would Parallel Imports be able to do that I couldn’t do?


  144. Hi, I’m trying to follow these steps to upgrade my Galaxy S2 to Ice Cream Sandwich. I get to the Firmware upgrade window where it is downloading the file for firmware upgrade, and then I get a pop up message that says “error in the downloaded file” at 60% completion. This has happened three times now! Any suggestions, please?

  145. Trying to upgrade to the latest FW for my GS2 (Bell Canada). I was prompted to update Kies to the latest version before doing so, no problem, worked fine. After that, I got the pop-up that a new firmware upgrade was avaialble for my phone. I clicked update but nothing happened, it just went back to the default Kies screen. So, I clicked on the orange Firmware Upgrade button and nothing happens when I do that either.

    I’ve uninstalled and reinstalled Kies, rebooted phone, etc. Any help?

  146. hello
    i try to update my samsung galaxy s2 with kies but it problem i read information
    your device does not support software upgrading via kies
    plz help me?
    how can i update my ics in my samsung galaxy s2

  147. hye

    pleas help me… my phone cannot upgrade firmware… show ” ur device cannot support to use via kies ” πŸ™ i try follow you tube.. but i cannot understand..u can explain to me properly ?

  148. I can’t even figure out how to search for possible firmware updates. I open Kies Air on my Galaxy S2 but all I see are ways to transfer Music, Photos, Contacts, Videos, Ringtones, Bookmarks, Messages, Call Log and File Explorer for my SD card… So confuuuuuuuuused.

  149. Dear all please i need some help i bought my phone 1 month ago and its gingerbread.jpkj2 , android version 2.3.5 baseband version I9100xxKI4 , when i tried to upgrade from the phone it self it said no update available.
    when i tried KIES
    it said this is the latest firmware
    Current Firmware Version: PDA:KJ2 / PHON:KI4 / CSC:KJ1 ( KSA )
    Latest Firmware Version: PDA:KJ2 / PHON:KI4 / CSC:KJ1 ( KSA )

    I live in Egypt but i got the phone from KSA. how can i upgrade to ICS now ? i need help with that please. thanks.

      • Based on what you post with the latest firmware version, ICS is still not available via Kies.

        If you really want to upgrade now, you can just download ICS firmware and install it to your

        phone via ODIN.

        • I don want to upgrade but first i dont know which Official Version i should download ?
          and what about the Languages all i need is English as base language and Arabic as some text i received in Arabic lang so i need the phone to support that too so which is the suitable version to download ?

            • Its okay im still looking for the Middle east version but have no luck yet finding it.

              Thanks for your help and reply my friend πŸ™‚

  150. I have tried to update my s2 using kies it downloaded all compoentes and it tool long time… and after that it said faied to connect device and told me to enable usb developemtn mode and after that it is again downloading all files… please help

  151. Hey Jayce

    i buy ma s2 from Saudi Arebia but when i connct it kies still not notificate updates i dont’t no why is it problem my phone or still not relese ICS update to middle east need help

    • Stuck at downloading firmware from Internet, right? Upgrade Samsung Kies to the latest version. Restart both PC and phone. Then try again.

  152. While i am trying to update my galaxy note firmware, after updating 100% its showing that unknown error occurred…what is the issue..please help me….

  153. am finding it really difficult to upgrade tp ICS with my S2 via kies,any other alternative am presently in Nigeria…thanks

  154. using kies for s2
    the upgrade got stuck at prepare for firmware upgrade
    its been hours
    before it a tab comes firmware upgrade is not working “check online or close the program”
    tried redownload the kies and all but still fails to get past it