How to Root Galaxy S3 GT I9300 on XXUGNB6 Firmware

Samsung Galaxy S3 GT I9300 Android smartphone users who have updated their device on the latest Jellybean 4.3 Android firmware XXUGNB6 can now root the device. Once rooted, users can then install many new custom ROMs which are based on the KITKAT 4.4.2 Android firmware and also can install the apps which need root access. So after checking out on what are the quick list of pre requisites below, we will head over to the detailed guide which will help you root the device.

Quick Pre Requisites:

• It’s highly recommended to back up all the data present in your device so as to make sure that just in case if data gets erased, the same can be restored easily. Don’t use KIES to back up the data.

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 XXUGNB6 Firmware:

• Download  XXUGNB6 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 XXUGNB6 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.