Want to get a perfect working Samsung Galaxy S II? Be sure to test all Samsung Galaxy S2 hardware functions before you pay for it. Otherwise, you might end like me and got a SUPER AMOLED Plus display issue SGS2. Luckily, all the functions are working fine on my 2nd SGS2.
Note – Don’t try this on US T-Mobile Galaxy S II. Users reported got issue after test it.
How to test Samsung Galaxy S2 hardware functions? Just bring up dialpad. Then key in *#0*#. LCD TEST application will be loaded. You can test SUPER AMOLED Plus display in red, green, blue, white and black colour. Make sure that your AMOLED screen has a perfect colour. You can also test the front and back camera. And test sensors like accelerometer, proximity, lights, gyroscope and magnetic sensors. Test your touch screen sensitiveness…
Okay, does your SGS2 pass all the hardware test?
Hi! thanks for posting this, very usefull! Do you know what should be seen under “Proximity”?
I have “Null” and my proximity sensor does not work anymore! Worked just for a few days and now I can’t get it working at all…. Any ideas? thnx
Null is normal. Just use your finger to block the proximity sensor (next to front camera). The screen will turn into green colour. 😉
Hi. Thanks for your reply. It does not work, that’s the thing! When I’m in a call (phone against my chick), the proximity sensor does not turn the screen off as it used to do.
In the hardware test page, if I block the sensor with my finger, it doesn’t turn the screen green, it does nothing.
Sorry to hear that. Try to factory reset. Then test it again. If still cannot, you might want to send back to Samsung for service.
I wanted to test my galaxyS2’s magnetic sensor, thanks Jayce. From where did you find it though ?
the magnetic sensor ? yes I know, I am asking you where was the #*0#* found ? thanks in advance
and what does the sub-key test do ?
Test phone buttons like volume, menu, back…
works well thankfully
Oh, found it from Internet ~ XDA, Lowyat, SamFirmware…
Hi Jayce, thanks for the post. Need some help from you.. MY SGS2’s display stopped working after 3 weeks. I took it to service center, they replaced the screen. But this replaced screen had some visible engraved scratches. I refused to take it they said they’ll replace it again.
Q1> How can one verify that authorised service center is replacing with a brand spare part?
Q2> Is there any way to run diagnostic on phone to obtain the spare part number / ids, date of manufacture, etc?
Quick responses will be appreciated. Thanks in Advance.
1. Not sure how Samsung Support work in your country. But in Malaysia, Samsung Service Center is the one that handle all the services and hardware replacements. They should use the original parts.
2. I don’t think that we can check it from user stand point unless you open up your SGS2.
Just wanted to let you guys know that this will mess up your lockscreen (unable to use) and you won’t get it back. I have the galaxy s ii from T-mobile USA and I tried this test the first time and the lockscreen went away. I wasn’t sure what happened to the lockscreen, but it was gone, no matter what settings I put in (pin, pass, pattern, immediately, 5 seconds, etc…).
I did a factory reset and tried the test again, and after the test (most likely the sleepmode test), the lockscreen went away.
I have the same loss of lock screen and noticed its absence right after I ran the *#0*# test that danny ran. Is there a way of fixing this issue without a hard reset?
I haven’t tried this, but maybe you can clear the system cache. It’s not a full reset.
I did a hard reset on my SG2 (T-Mobile) and I have both the lockscreen and powerdown screen restored. I tried clearing caches, taking the battery out while the phone was on among other things and the hard reset is the only thing that worked.
I think the test for the lcd is fine when you look at the different colors, but beyond that, it will mess up the lockscreen. I tried it without doing the sleep mode test and still the lockscreen went away. So now I believe it’s the the camera tests or the functions tests.
Does anyone have a solution to fix the lock screen issue. I tried resetting my device all three ways available and still the lock screen bug persists.
Any help will be much appreciated.
DO NOT, i repeat DO NOT use this testing application for more than LCD color tests and sensor tests. There have been many reports of the other tests breaking the phones lockscreen and power button function (see here: http://support.t-mobile.com/thread/9818?start=15&tstart=0 for example).
Until a solution is found, i would recommend staying away from this test.
Author, please take this into consideration.
why every time i try to verify the lcd test it says force to close aplication?
Which SGS2 model do you have?
The model is GT-I9100 and the Android version is 2.3.3
Look like your Android OS is not stable. You can try to factory reset it if you want.
hi,Jayce thanks for your anwers can you tell me how to activate the light sensor of my samsung galaxy s2 model GT-I9100 please?
The light sensor is already activated by default. Yours got issue?
I don’t know the things is that it doesn’t blink?
Just cover the light sensor. Your SGS2 screen should turn into green colour.
Hi, Jayce thanks for your help. you will see after the comment below a link on youtube that the person make its light sensor blink when he verify the sensor of his phone using ‘phone tester’ and also without using this software he verify it by dial *#0*# and he click on sensor the light sensor still blink white.I download phone tester and try to make it blink but it doesn’t and I try the dial method but still the same its doesn’t blink like in the video.can you help me please? Is there a solution? or a problem with my phone? or is there a program for that sir?Thanks in advance you did a great job.
Please consult Samsung Support since your light sensor got issue.
Hello Mr. Jayce 🙂
I am using a Samsung Dart (SGH-T499) running Android version 2.2.2.
I tried out the LCD TEST by typing *#0*# on the number pad.
Everything worked out fine, but after exiting the Test, I am encountering a serious problem.
My screen does not lock at all 🙁
when I press the lock button, it just turns off the screen, but does not lock it.
Also Screen Timeout turns off the display properly, but even that does not lock the screen.
Please help suggest how I can rectify this.
Eagerly waiting for your reply.
Look like another bug from Samsung. Please consult Samsung Support on your issue. Or factory reset your phone.
Thanks a Lot Mr.Jayce, for such a fast reply.
Can I also upgrade to Android version 2.3.x when I do this factory reset?
Any idea where I can find out more about upgrading the OS?
No. You need to upgrade firmware with Samsung Kies.
Unfortunately Samsung Kies does not work with my phone. & My phone is not listed in the supported models in the Samsung Kies website 🙁
Oh, my mistake. I thought all Samsung phones are support by Samsung Kies. Please consult Samsung Support on this as well then.
I am facing problem that there is no screen lock, power menu, shut down and restart option so that I can apply these. Can anyone help me in this matter?
i have tried everything but still same problem
i am using s2 android v : 4.0.3
Hi farooq, try factory reset it see.
Hello Jayce, I’m wondering after testing megacam and front cam with the pictures taken, are they stored in the device’s storage or sd card?
Okay. I’m just puzzled because I don’t find them after running the device’s hardware test.
Thank you for your response.
How can I test Samsung Galaxy S2 hardware functions?
How can I bring up the dialpad?
Please help me.
Dialpad == phone call dial.
Have a Samsung Galxay S2 and my camera doesn’t focus properly.
have tried general resets but not a full factory reset.
Do you reccomend a full reset.
Hi jim, you can try it first. If still cannot solve, send back to Samsung for warranty claim.
How to find out manufacturing date of Samsung Galxay S2?
Sorry Vijay, I have no idea too. Please consult Samsung Support.
HI I have GT-I9100 running on ICS. Lately I seem that my touchscreen become less sensitive. Sometimes i have touch twice phone does not register the touches but i dont know i an issue with my phone or with my mind. How can know is there a problem.
Hi Nitin, it might be application that you installed is causing the issue. You can try to factory reset to find out.
hey jayce my friend want to buy a second hand Galaxy s2 how to check its manufacturing date in the device
Sorry Prashnath, I also don’t know how to check that.
hii i hv s2 i9100g hv touch pblm,somtym it wrking wel ,somtym nt wrking(touch screen)
i wanna knw the pblm plzz help mee
Hi wasim, please consult Samsung Support for hardware issue.
my android fallen from 1ft heightthis morning, but so far i check it still working awesome and not even a scratch… fuuuuuuuhhhh,, any comment?
Lucky day. Not every fall will damage the device but be careful. 🙂
I want to buy secondhand s2. Can u suggest me that what to check before buying it.
Check all of the tests above.
Hi my s2 came with ginger bread 2.3.3 some upgraded my phone to icream sandwich 4.0.4 whicj made some applications non functional dowloaded from play store. i got icream sandwitch reinstalled by samsung service centre but since then it is running slow. i think they have either changed the processor or motherboard of the phone. Is there any way to check hardware info installed on my phone.
Hi Raj, there are 2 SGS2 models. One is I9100 and another is I9100G. They can change model but can’t simple change hardware inside.
Whenever i asked samsung service centre for software upgrade they replied that they will do that but the phone become dead incase the installation stucks somewhere. how can installation stuck if factory reset completes successfully.
Is there any harm in changing the operating system in galaxy s2 GT-I9100
Can we do that using our own computer at home.
Factory reset should not bring any problem.
No harm if do it correctly. You can use Odin to install firmware.
Not in this hardware test. Use GPS Test to test.
i have a sammy gs2 and nexus s and both proximity sensors both work but for some reason on calls they both dont respond when moving away from face and back to face.in settings on the sammy gs2 i have it ticked so do not know why.any suggestions regards
Hi rich, are you using screen protector?
i have a samsung galaxy S1.But suddenly its Sim singnal is droping .i want to chack samsung hardware office but i dont know where i go and chack these fault ???are you know where in samsung factory in lahore ,Pakistan …Any Suggestion Regards
Sorry Muhammad, I have no idea. Please consult Samsung Support directly.