Galaxy S III

How to Root Samsung Galaxy S3 GT I9300 on XXUGNA8 Firmware – Guide

Samsung Galaxy S3 users who have recently updated with the latest firmware version of XXUGNA8 can now be rooted so that you can now install the custom ROM firmwares and the apps which need the root access. Before proceeding, make sure that your device is on the XXUGNA8 version of firmware or not from the path “Settings > More > About Phone > Firmware version” where the firmware version will be mentioned as XXUGNA8. Just in case if you see something else, you need to apply the firmware by following the instructions at the below mentioned link;

Manual Update Galaxy S3 GT I9300 with Official Jellybean 4.3 XXUGNA8 Firmware – Guide

Jellybean 4.3

Quick Pre Requisites:

  • All the data in your device needs to be backed up with the help of below mentioned steps manually and not with the KIES.

SMS – Use “SMS Backup & Restore app”,
Contacts – Sync with the Gmail application,
Call Log – Call Log and Restore
Images, Songs, Videos, Files – Copy to internal / External SD Card,
APN and MMS Settings – Note down from the path “Applications > Settings > Wireless and Network > Mobile Networks > Access Point Names

  • Head over to the path “Settings > Applications > Development > USB debugging” in your Samsung Galaxy S3 I9300 so as to enable the USB Debugging Mode.

Disclaimer: We should not be held responsible in any manner for any damage happened to your Galaxy S3 I9300 due to not following the instructions mentioned in the article.

Once you have backed up all the data in your device, you now will have to proceed to the next step where we have mentioned the detailed guide which will help you root the device.

Procedure to Root Galaxy S3 GT I9300 on XXUGNA8 Firmware:

  • Download  XXUGNA8 Rooting Package along with Odin from here to your computer. Once downloaded, you now need to enter your Galaxy S3 I9300 in download mode.
  • Turn off your Galaxy S3 I9300 and after 5 seconds or when your device gives a small vibration, hold the Volume Down button + the Home key button (the middle button). While holding these both buttons, you need to switch ON your device to see the Green Robot on the screen.
  • Connect your device in Download mode with the computer in which you have opened the Odin. In Odin you will see that the ID:COM section will turn yellow indicating that all the drivers are installed successfully.
  • Once done, click on “PDA” / “AP” depending upon the Odin version to choose the Rooting tar file which you got after extraction and click on “Start” to start the process of rooting. It will take around a minute for rooting the device. In some cases it may taken even longer time than expected.
  • Download the “Root Checker” app from the Google PLAY Store to check on whether the device is rooted or not. Just in case if the device is not rooted, you need to retry the process of rooting.

Tip: Since rooting voids warranty, if you need to get back the lost warranty, you need to update the device with the below mentioned firmware by following the respective instructions.

Manual Update Galaxy S3 GT I9300 with Official Jellybean 4.3 XXUGNA8 Firmware – Guide

Note: Just in case if your Samsung Galaxy S3 GT I9300 gets in the boot loop sequence then you need to turn off the device and then reapply the update from the start. To turn off you can reinsert the battery or say you can long press the power button.

Do let us know in the comments section or on out Facebook / Google+ Page if you face any issues. We will very soon be coming up with the detailed guide which will help you install the custom ROM firmwares.



  1. Dennie

    February 1, 2015 at 12:08 am

    The first time it didn’t work for my S3 (GT-I9300 with 4.3 XXUGNA8) . I used a newer version of ODIN 3.10.0 and put addtionel on my phone. I installed it with install zip file from SD by recovery mode. Now it is working on my S3 too.

  2. Krisztian

    March 11, 2014 at 2:19 pm

    It just doesn’t work. I did everything as written in the article, success and ok messages, even the SuperSU gets installed, but root checker says my phone is not rooted (and apps which need root doesn’t work either).

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