T-Mobile USA has released the official Android 4.1.2 Jelly Bean update for Samsung Galaxy S2 (SGH-T989). This Android 4.1.2 is packed with a new baseband version T989UVMC6 and brings some Jelly Bean goodies such as Google Now, Voice recognition and other stuff. Those who updated through Kies may possibly already lose root since once the official software update has installed your device root was removed. So, for those who wants to retrieve root again on their Samsung Galaxy S2, just follow this rooting guide below.
Disclaimer: Rooting voids the warranty of your device. We and the developer of this rooting procedures shall not be held responsible if any undesirable outcomes may happen to your device. use of this root guide is solely at your own risk!
Install TWRP Recovery in Odin
- Make sure the battery is fully charge
- Run Odin downloader tool.
- Reboot the phone into download mode – Turn it OFF. Then hold down both volume buttons and plug connect USB cable into your phone. (or hold volume down and power button). Press the volume up button when you see this menu.
- Just be sure that Re-Partition is NOT checked. leave Auto reboot and F-Reset time checked by default.
- Click the PDA button in Odin. Browse to the TWRP file “openrecovery-twrp-18.104.22.168-hercules.tar” you downloaded and select it.
- Now hit Start button and Odin will flash the recovery.
- Once Odin has finished flashing you will see a green PASS.
Install SuperSU and Gain Root
- Reboot into recovery. Power off your phone. Hold both volume buttons and the power button at the same time. When the phone vibrates, let go of the power button but keep holding both volume buttons. In a few seconds you should be in the recovery menu.
- TWRP will tell you that the phone is not rooted and ask you if you want to install superSU. Say yes.
- Phone will reboot, and in your programs there will be a superSU installer. Open it.
- Just follow the TWRP prompts.
Now you fully rooted your T-Mobile Samsung Galaxy S2 Android 4.1.2 Jelly Bean UVMC6, credits to [ScottPomroy] via XDA-developers thread.