Root Galaxy S3 I9300 XXBLG8 Android 4.0.4 Official Firmware with CF-Root

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Android 4.0.4 build XXBLG8 for the Samsung Galaxy S III was released over Samsung KIES for some countries. We have already posted how to install I9300XXBLG8 Android 4.0.4 manually and now we’ll tell you how to root the firmware with CF-Root package using ODIN.

As you continue reading below, we will guide you through the entire process of how to root XXBLG8 Android 4.0.4 on Galaxy S3 I9300. The guide has been written in very easy-to-understand words and can be performed by anyone. Make sure you backup data as given below just as a precaution. Let’s get on with the tutorial now.

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 ;-)

This tutorial is only for rooting the official software update released over Samsung KIES or flashed with ODIN.

CF-Root Package Contents:

CF-Root package comes with the following:

  • SuperSU v0.93
  • ClockworkMod (CWM) recovery v5.5
  • CWM Manager v3.60

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 root Galaxy S3 I9300 on XXBLG8 Android 4.0.4 firmware.


  • Mathias

    Hi,

    I tried this method but Odin says
    ” Added!!
    Odin v.3 engine (ID:5)..
    File analysis..
    SetupConnection..
    Can’t open the serial(COM) port.
    All threads completed. (succeed 0 / failed 1″

    I had the phone rooted with CF Root but then I did an update because the Phone said there is a firmware upgrade. I also had 4.0.4 before but another build I think then…(Didn’t know the root won’t work after that)
    Now I wanted to re-root the phone with this. Is that the problem? If yes, how can I solve it (If possible without loosing my files on the phone)
    Thanks in advance!

    • http://www.harisnadeem.com Haris Nadeem

      What build do you have now on your phone?

      • Mathias

        I solved the problem.
        I had to restart my PC and then directly after reboot close all the Samsung Kies tasks in the task manager. (You could add the hint to close all kies tasks before the procedure in the text above, I think that would be helpful.)
        After that it worked.
        Before that I tried different USB Ports and close all kies tasks before reboot my PC (used kies before to backup my phone stuff) but I got the same error all the time until I rebooted.
        Greetz!