The T-Mobile Galaxy S3 has recently received another official Ice Cream Sandwich based UVALH2 firmware, still Ice Cream Sandwich not Jelly Bean, however, according to resources, first of all Galaxy S3 I9300 will get Jelly Bean soon at the end of this month, the UVALH2 firmware is currently available via Samsung KIES and OTA (over the air).

If you haven’t received the OTA update on your T-Mobile Galaxy S3 or you can’t update your smartphone via Samsung KIES, you can install UVALH2 firmware on T-Mobile Galaxy S3 manually, here’s step by step guide to install it manually.

Before you start installation, first disable all system tools such as Samsung KIES, antivirus, firewall program, please make a backup of your device data such as SMS, internet setting, contacts music files etc because the below procedure may wipe data, you can sync your contacts with Gmail account and for messages use SMS apps, lastly use file expert app to backup apps, device USB drivers must be installed on your PC, you can download drivers from here.

DISCLAIMER: Please proceed the below guide at your own risk, Android Egis will not be held responsible if your device lost data or get damaged following this guide.

Instructions

Step #1: Download the UVALH2 firmware (T999UVALH2_T999TMBALH2_TMB.zip) from here or here to computer and unzip it into a single folder.

Step #2: Download the required Odin .04 from here and unzip into a folder.

Step #3: Open the folder where you’ve unzipped above file and run Odin.

Step #4: Turn the device off.

Step #5: Reboot the device into download mode by holding down volume down, home and power buttons until a warning screen appear on the screen, then press volume up button to enter in download mode.

Step #6: Once you’re in download mode plug the device to PC using USB cable. Odin will detect the device, ID:COM will turn yellow and a message saying ADDED will appear. (Note: If Odin doesn’t detect the device, make sure that USB drivers are properly installed on your computer).

Step #7: Click on PDA Button and locate P6810OXALPK_P6810XXLPK_HOME.tar.md5 from the folder where you’ve unzipped above files in the step 1. (Note: Don’t make any change, just make sure that re-partition is unchecked).

Step #8: Click on Start button to start installation, once the installation done, your device will reboot itself and you’ll see message saying PASS (Note: If Odin refuse to install the update and show message FAIL, or get stuck, close the Odin and unplug device, then pull out battery from the device for a few seconds. Then put the battery back to the device and reboot into download mode. Then install the firmware again.

Step #9: If your device reboot into normal mode, you’re done, but if your device gets stuck at boot screen, turn if off again, then reboot into recovery mode by holding down volume up, home and power buttons until screen turns on. In recovery mode, perform full wipe, select the wipe data/factory reset, and confirm on the next screen, once it done, return to main menu and reboot phone, to do so, select “Go Back” after that select “Reboot System Now.”

That’s it, you’re done, enjoy new firmware, do comment for queries.

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