Samsung Galaxy S2 On T-Mobile Gets Android 4.2.2 Jelly Bean Update Via ROM

An Android 4.2.2 Jelly Bean update has become available for the Samsung Galaxy S2 on T-Mobile (SGH-T989) via ROM.

The CM 10.1 M3 ROM is a custom ROM that is a nightly build and after installing it you may get FC errors and other bugs. In order to fix this you will need to reinstall stock firmware or another stable custom ROM. Since this is not an official update, in order to flash the ROM zip and Google Apps zip files you will need custom recovery like ClockworkMod.

Before installing, remember that there's always the chance that the device could become bricked. This only happens if the instructions are not followed properly.

This is only meant for the T-Mobile Samsung Galaxy S2 SGH-T989. You can check the model number by going to Settings → About Phone.

Disclaimer: iTech Post will not be held responsible for any damages caused to your device. All of the utilities in the guide belong to the owners or developers. Use at your own risk.

Preparation:

  1. Make sure that the battery is at least 80 percent charged.

  2. Download and install USB drivers for the Galaxy S2. Enable USB debugging mode.

  3. Back up all data.

  4. Download and install ClockworkMod recovery.

  5. Download CM10.1 M3 Android 4.2.2 ROM.

  6. Download Google Apps.

Directions

  1. Connect your Galaxy S2 to the computer through the micro USB cable.

  2. Copy and paste the downloaded CM10.1 M3 Android 4.2.2 ROM to the device.

  3. Turn off the device and unplug the USB cable.

  4. Enter ClockWorkMode Recovery by pressing and holding the Power, Volume Up and Home buttons together.

  5. In Recovery menu, it is recommended to perform a full Wipe Data/ Factory Reset to avoid ROM compatibility issues and crashing. This is an optional step if you upgrade from your previous ROM version. For CWM recovery, use the Volume key to navigate in recovery mode. For TWRP, use touchscreen to navigate in recovery mode.

  6. Do Wipe Cache Partition (choose from the menu and select Yes to confirm).

  7. Go to advanced and do Wipe Dalvik Cache (choose from the menu and select yes to confirm).

  8. While in Recovery, choose install zip from SDcard from the main menu. Then select choose zip from internal SDcard. Go to the folder location and select the Google Apps file. Click Yes to install.

  9. Once the installation is complete, return to the recovery's main menu.

  10. Choose reboot system now to reboot the device. This will take some time.

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