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How to remove yellow triangle on Samsung Galaxy S2 without USB Jig? (Video)

After rooting Samsung Galaxy S II, a yellow triangle will show up at the bottom of Samsung Galaxy S2 Logo during boot up. The simplest way to remove yellow triangle on Samsung Galaxy S II ~ use micro USB Jig. However, USB Jig is not a common gadget that you can find in PC shop (I ordered mine from eBay). How to remove yellow triangle on Samsung Galaxy S2 without USB Jig? Check out below step by step video guide to find out. A long way to go but you can remove the sharp looking yellow triangle…

Prerequisites

  • Odin3
  • CF-Root
  • Stock kernel

In short, you need to have stock kernel of the firmware that you are using. Flash it with Odin after you rooted SGS2. The stock kernel will remove the yellow triangle. Then re-flash kernel from CF-Root using CWM Manager. This will bring back ClockworkMod Recovery.

Note – You need a CF-Root that matches your Samsung Galaxy S2 kernel version. And stock kernel that matches your firmware.

How to install and use Chainfire3D on Samsung Galaxy S2?

Chainfire3D allows you to play Tegra, Snapdragon & PowerVR games on Samsung Galaxy S II with ARM Mali-400 MP GPU. However, by installing Chainfire3D itself does not allow you to play these games yet. Additional plugins are required to install before Chainfire3D can perform the task. Besides, you need to root Samsung Galaxy S2 first in order to use Chainfire3D. Not a simple task for beginner, so I created a step by step guide to install Chainfire3D on Samsung Galaxy S2.

Prerequisites

  • CF-Root

First of all, please get your Samsung Galaxy S2 rooted. Please follow this guide to do so – How to root Samsung Galaxy S2 with CF-Root? (Video). And make a full system backup before install Chainfire3D for just in case – How to backup Samsung Galaxy S2 with ClockworkMod Recovery? (Video). Nothing should go wrong, but no harm to make backup, right?

Download CF-Root for Samsung Galaxy S2

Thanks to XDA Developer, Chainfire (Donate him) for his CF-Root for Samsung Galaxy S II. Basically, CF-Root is a modified kernel based original firmware kernel by adding root to it. Besides, it also adds BusyBox, Superuser, ClockworkMod recovery and CWM Manager. It is one of the ways to root Samsung Galaxy S2.

Samsung Galaxy S2 Kernel Version

How to install ClockworkMod Recovery on Samsung Galaxy S2? (Video)

ClockworkMod (CWM) Recovery Mode allows you to install custom firmware via zip format in SD card. Besides, CWM also provides backup and restore functions in Nandroid. And other advanced functions too. ClockworkMod Recovery is a must install component because lot of the custom firmware are developed to be flashed via CWM. How to install ClockworkMod Recovery on Samsung Galaxy S II? Personally, I installed CWM through CF-Root. Besides getting CWM installed, I also have Samsung Galaxy S2 rooted. Isn’t that great?

Prerequisites

  • Odin3
  • CF-Root

Note – You need a CF-Root that matches your Samsung Galaxy S2 kernel version. Then use Odin3 to install it.

Top reasons to root Samsung Galaxy S2

Why you should root Samsung Galaxy S II? Before using Samsung Galaxy S2, I am an Android HTC HD2 user. And all the custom ROMs for HTC HD2 are rooted by default. Therefore, I don’t have any issue to use Android applications that require root access. Here are my top reasons why you should to root Samsung Galaxy S2.

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