How to Update Galaxy S3 I9300 to XXELL1 Android 4.1.2 Jelly Bean Firmware

How to Update Galaxy S3 I9300 to XXELL1 Android 4.1.2 Jelly Bean Firmware - XXELL1 Android 4.1.2 Jelly Bean firmware is now available for Samsung Galaxy S3 I9300 in Spain.

Follow the guide in this post on how to update Galaxy S3 I9300 to XXELL1 Android 4.1.2 Jelly Bean firmware.

Before we proceed, make sure:

1. You have installed your Galaxy S3 I9300 USB drivers on your PC.
2. You need to enable USB debugging mode which is deactivated by default.
3. You smartphone should have 70-80% charge remaining.
4. Backup your important data like Call logs, SMS and other data in stored in phone memory so in case if anything goes wrong, your data is not hurt.
5. The update is only meant for Galaxy S3 I9300, so don’t other to try it on other variants.

How to Update Galaxy S3 I9300 to XXELL1 Android 4.1.2 Jelly Bean Firmware

Step 1) Download XXELL1 Android 4.1.2 Jelly Bean official firmware for Galaxy S3 I9300.

Step 2) Download ODIN v3.07.

Step 3) Turn OFF your mobile and go to Download Mode by pressing and holding the Volume Down + Home Buttons together for few seconds followed by Power button until you see Android logo on screen.

Step 4) Now open ODIN on your PC and connect your Galaxy S3 I9300 to your computer.

Step 5) Once your phone is successfully connected to your PC, the ID:COM box on ODIN will turn yellow and will show the COM port number.

Step 6) Select the downloaded file to install by following below steps:

• Click on PDA and select file with HOME or CODE in its name.
• Now click on Phone and select file with MODEM in its name. Ignore if there is no such file.
• Next click on CSC and select file with CSC in its name. Ignore if there is no such file.
• At last click on PIT and select file with .pit. Ignore if there is no such file.

Step 7) Again to to ODIN window and check Auto Reboot and F. Reset Time options.

Step 8) Click on Start button in ODIN window to start the installation process. The process will take few minutes to complete.

Step 9) When the installation is completed, your phone will restart.