One more official firmware, XXDLI1 Android 4.1.1 (Jelly Bean), for the global version of Samsung Galaxy S3 by model number I9300 has been leaked, reports Team Android. This is not the only test firmware. Earlier, a few firmwares have appeared online and the latest among them was XXDLH9, leaked a few days ago.

Samsung Galaxy S3
A test firmware Android 4.1.1 XXDLI1 for Galaxy S3 has been leaked.

The latest XXDLI1 firmware carries a build date of 3 September and was originally for the UK. According to a Sammobile report, this Jelly Bean test firmware for Galaxy S3 is the most stable firmware so far. Issues seen in the previous test builds have been fixed in this firmware.

Samsung, at a pre-IFA press conference, announced that the Jelly Bean update for Galaxy S3 would be rolled out very soon, reports GSMArena. Samsung is reportedly bringing in minor changes over the user interface (UI) to the Jelly Bean update.

Until Samsung releases the official update, the Galaxy S3 users can enjoy the Jelly Bean with the latest leaked firmware by following the below mentioned guide. IBTimes UK warns users that it will not be responsible in case any damage occurs to the device during the firmware installation. Users are advised to keep a back-up of all important data as well as APN settings before proceeding.

Ensure that you have installed USB drivers for Galaxy S3 and that the USB debugging mode is enabled. This leaked firmware XXDLI1 is only compatible with the Galaxy S3 I9300 and not with any other variants, so check the model number of the device before proceeding. The phone should be factory unlocked and the battery must have at least 85 per cent of charge.

Android 4.1.1 XXDLI1
The XXDLI1 firmware for Galaxy S3 is the most stable firmware until now.

Steps to Install Android 4.1.1 XXDLI1 for Galaxy S3

1) Download Android 4.1.1 XXDLI1 for the Galaxy S3 to your computer

2) Download Odin v1.85

3) Switch off your Galaxy S3 off and put it into Download Mode (to do so, press and hold Volume Down, Power and Home buttons until a warning message appears and then press Power once again to enter into Download Mode)

4) Open Odin in the computer

5) Connect Galaxy S3 to computer while it is in the Download Mode

6) In Odin, select these files in the mentioned order
a) Click on PDA and select file CODE

b) Click on PHONE and select file MODEM

c) Click on CSC and select file CSC

d)-Click on PIT and select file .pit

Note: You can ignore steps-b, c and d if you do not find such files.

7) In Odin click on Start button to begin installation which will take a few minutes

8) After installation, the Galaxy S3 will restart automatically. You can now safely unplug device from computer and then turn phone off again

9) Put the phone into Recovery Mode (Switch on the phone by pressing Volume Up, Home and Power buttons)

10) Browse to the recovery menu and select Wipe Data > Factory Reset and confirm data wipe

11)-Now select Reboot System to boot up into the new firmware

Your Galaxy S3 is now running Android 4.1.1 XXDLI1 firmware. You can check version by navigating to Settings > About Phone.