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Samsung has released a firmware update for Galaxy S3 I9305; XXBMA5 Android 4.1.2 Jelly Bean Official Firmware. While this update is available via KIES and it is recommended that you get it from there. If for some reason, you cannot access the official update or would like not to wait and get it on your phone right now, here is a guide to update your Galaxy S3 I9305 to XXBMA5 Android 4.1.2 Jelly Bean Official Firmware.

Also, read: Guide to Root XXBMA5 Android 4.1.2 Jelly Bean Official Firmware on Galaxy S3 I9305

Disclaimer:This guide will use a tool; Odin to flash the official firmware on your Galaxy S3 I9305. During the process, you might lose all your existing installed apps and personal settings. It is therefore necessary for you to follow the guide carefully. Also, please, do mind that this tutorial is only for Galaxy S3 I9305. Don’t try this guide in any other Android device.

Android 4.1.2 XXBMA5 Firmware Details:

PDA: I9305XXBMA5
CSC: I9305OPSBMA1
Version: 4.1.2
Date: 2013-01-16
Regions: Austria, Belgium, France, Germany, Hungary, Italy, Spain, United Kingdom

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Guide to Update Galaxy S3 I9305 to XXBMA5 Android 4.1.2 Jelly Bean Official Firmware

Download

  1. Android 4.1.2 I9305XXBMA5 for Galaxy S3 I9305
  2. Odin 3.07

Guide to Update Galaxy S3 I9305 to XXBMA5 Android 4.1.2 Jelly Bean Official Firmware

  1. Extract the firmware zip file that you have downloaded using the link above, you will then get a .tar file alongside other files.
  2. Extract Odin zip file to get Odin3 v3.07.exe.
  3. Power off your phone. Wait 5-6 seconds to confirm complete switch off.
  4. Put the Galaxy S3 I9305 in Download Mode by pressing and holding Volume Down and Power button until Samsung Galaxy logo appears in phone screen. Wait for a few seconds and you will be in download mode.
  5. Run Odin3 v3.07.exe (see Step 2) as an Administrator.
  6. Connect your Galaxy S3 I9305 with your PC using USB cable. A message will appear under Odin’s message box in the bottom left saying “Added!!”. If you don’t get it, then try another USB port. If that too doesn’t work, then reinstall the USB driver. If you successfully see the “Added!!” message in Odin, you are good to go. Also, check for COM port with a number in Yellow to make sure that you have successfully added your device.
  7. Select the following files in Odin at their respective tabs from extracted XXBMA5 firmware folder :
    • Click the ‘PDA’ Button, and select the .tar file here with *code* appearing in file-name.
    • Click the ‘Phone’ Button, and select file with *modem* in its name (Ignore, if this file does not file exist).
    • Click the ‘CSC’ Button, and select file with *csc* in its name (Ignore, if this file does not file exist).
    • Click the ‘PIT’ Button, and select the .pit file. Use only if you got it while extracting in step 1 above, otherwise ignore it.
    • In Odin window, make sure Auto Reboot and F. Reset Time checkboxes are selected. Please make sure that Re-Partition checkbox is selected, only if you are using a .pit file.
  8. Recheck everything mentioned in Step 7 & 8 above. Hit the ‘START’ button to begin the flashing process.
    Once the flashing process is completed, the phone will reboot automatically and you will see a PASS message in the top-left-most box. You can now unplug the USB cable to disconnect your device from computer.

If you have followed every point described in the guide, your Galaxy S3 I9305 should now be running Android 4.1.2 Jelly Bean build I9305XXBMA5. If there are any issues, feel free to post in the comments section for our staff to take a look at it.