Install XXBMA3 Android 4.1.2 Jelly Bean Firmware on Galaxy S3 I9305

I9305XXBMA3 Android 4.1.2 for Galaxy S3 I9305 is available for a download for Vodafone subscribers in Romania. We will be going through a detailed guide to install the firmware update manually.

This is an official update by Samsung hence you will lose root and other Custom ROMs installed on device.

Let us follow the tutorial to install XXBMA3 Android 4.1.2 for Galaxy S3 I9305.

Firmware Details:

Version: 4.1.2
Date: 2013-01-23
Regions: Austria, Belgium, France, Germany, Hungary, Italy, Spain, United Kingdom

The guide mentioned below is only for Galaxy S3 I9305 and is not compatible with any other device. To know the model number of your device go to Settings >> About Phone.

We cannot be held liable of any damage done to your device while following the below mentioned procedure.

Galaxy S3. 1

Install XXBMA3 Android 4.1.2 Jelly Bean firmware on Galaxy S3 I9305

Take a complete backup of data,apps and settings as the procedure may wipe your data.

Make sure that the battery of device has a minimum charge of 60%.

Enable “USB debugging” on your device by going to Settings >> Developer options >> Enable USB debugging.

Download Kies Software to install drivers.

Download XXBMA3 Android 4.1.2 firmware ( update on Galaxy S3 I9305 and Odin (

Extract the Firmware file which you have downloaded in above step. You will get “.tar” file along with other files.

Extract Odin to get “Odin3 v3.07.exe” file.

Switch off device.

Boot device into download mode. Press and hold Volume Down, Home, Power till device turns on and then press Volume Up to enter download mode.

Connect device to computer using USB cable. Odin will detect your device and ID:COM will turn yellow and a message appears saying “Added”. Re-install drivers if Odin fails to detect device.

Click on “PDA button” in Odin and navigate to select “.tar″ file which you have downloaded.

In Odin make sure that “Auto Reboot” and “F.Reset Time” are selected and “Re-Partition” check box is unchecked.

Click on Start button in Odin to start flashing Android 4.1.2 firmware. When flashing is complete you will get a PASS message.

Disconnect device from your computer and let it boot automatically.

XXBMA3 Android 4.1.2 firmware for Galaxy S3 I9305 is installed. You can check firmware version by going to Settings >> About Phone.

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