How to Install Galaxy S3 I9300 XXBLG3 Android 4.0.4 Official Firmware

• Last modified: Android Tips

Samsung Galaxy S3 users are eagerly waiting for the official Android 4.1 Jelly Bean software update, but Samsung has not yet announced if there will be a Jelly Bean update available for the Galaxy S III. For now, we again have another official ICS Android 4.0 firmware for download. You can install Android 4.0.4 XXBLG3 on Galaxy S3 I9300 using the tutorial given below.

This latest I9300XXBLG3 was released by Samsung over KIES in Luxembourg. The modem build is LUXBLG1 and the firmware build date is 18th July 2012.

As you continue reading below, we will guide you through the entire process of how to install the official software update Android 4.0.4 XXBLG3 ICS on Galaxy S3 I9300 using ODIN. Please make sure you backup all your apps and personal data as this tutorial will wipe all your data. Let’s continue with the tutorial below.

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 XXBLG3 Firmware Details:

PDA: I9300XXBLG3
CSC: I9300LUXBLG1
Version: 4.0.4
Date: 2012-07-18
Regions: Austria, Belgium, France, Germany, Hungary, Italy, Spain, United Kingdom

Make sure you have installed all your USB drivers for the Samsung Galaxy S III to connect it with the computer. Download Samsung 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 install XXBLG3 Android 4.0.4 on Galaxy S3 I9300.


  • Bilaboom

    bonjour depuit la mis a jour du rom, il ne peut plus être reconnu pour les mis a jour avec kies, mon csc est devenu PRO et il me faut LUX que faire ?
    quant je tape *#272*imei# on ne me propose que l’option PRO, imposible de revenir sur LUX.
    merci pour votre solution