Update T-Mobile Galaxy S3 SGH-T999 to UVALH2 Android 4.0.4 Stock Firmware

• Last modified: Android Tips

T-Mobile Galaxy S3 SGH-T999 can now be updated to UVALH2 Android 4.0.4 official firmware. This new official firmware update is available over OTA or else continue reading below for our manual tutorial to install UVALH2 Android 4.0.4 on Galaxy S III T999. You do not need to root your Samsung Galaxy S3 or even install a custom recovery for this tutorial. Method to root UVALH2 Android 4.0.4 will be posted soon.

As you continue reading below, we will guide you through the entire process of installing UVALH2 Android 4.0.4 on T-Mobile Galaxy S3 SGH-T999 using ODIN flashing tool. Let’s continue with the tutorial below and don’t forget to backup all your data as given below. UVALH2 Android 4.0.4 is an official firmware for Galaxy S3 users in USA (T-Mobile).

Samsung Galaxy S III - Pebble Blue

Disclaimer: All the tools, mods or ROMs mentioned below belong to their respective owners/developers. We (TeamAndroid.com) or the developers are not to be held responsible if you damage or brick your device. We don’t have you on gun point to try out this tutorial ;-)

Android 4.0.4 UVALH2 Firmware Details:

PDA: T999UVALH2
CSC: T999TMBALH2
Version: 4.0.4
Date: 2012-08-03
Regions: USA (T-Mobile)

Make sure you have installed all your USB drivers for the Samsung Galaxy S III to connect it with the computer. Download Samsung T-Mobile Galaxy S3 USB drivers! Apart from just the USB drivers, there are a few more things that you need to take care of.

1. You need to enable USB debugging mode. This helps to connect your Android phone with the PC. See here: How to Enable USB Debugging.

2. Your phone battery should be 80-85% charged. If your phone goes off suddenly because of battery, during flashing ROMs or installing mods and updates — your phone might go dead permanently. See here: How to Check Battery Percentage.

3. Backup all your important data that you might need as soon as your flash a new ROM, or make a backup for just in case, you never know when anything might go wrong. See below on how to backup data:

Data can also be backed up using Samsung KIES for their devices, but if you backup data manually, you get more options what top choose from and it is very easy to move data across Android devices from different manufacturers, i.e moving Samsung Galaxy Note backup data to HTC One X.

4. Your phone should be factory unlocked. Additional instructions for locked Android devices will be added in the tutorial for unlocking devices.

Now, let’s proceed with the tutorial on the next page and update T-Mobile Galaxy S3 SGH-T999 to UVALH2 Android 4.0.4 official firmware.