The Samsung Galaxy S III for Verizon is one of the devices which is in the front lines for Android 4.1 Jelly Bean. But we know that the software update will have to go through both the manufacturer’s and the carrier’s vigorous testing before it rolls out to users.However a leaked version of Jelly Bean has been made available for the Galaxy S III and it even has the Samsung TouchWiz UI on board.
This is not the first ROM leak for the Galaxy S III. The International variant was the first with a leaked ROM followed by the Samsung Galaxy S III for T-Mobile.
As you would already know, leaked ROMs are nearly never bug free, and this ROM will leave users having to deal with the failure to show GPS directions. There is also another bug which doesn't allow you to set the wallpaper by using the long press method, you can work around this by setting your wallpaper through the gallery.
[NOTE] Installing custom ROMs can void your device warranty and cause your device to be unusable if installed improperly. Please proceed at your own risk
[NOTE] Please ensure your device is rooted and has a boot recovery method installed before you proceed. You can find guides for doing this on our website using the search feature.
- Download Android 4.1.1 for Samsung Galaxy S III.
- Perform a backup of your data before you proceed.
- Copy the downloaded file into your device SD card.
- Boot into recovery
- Run ‘Wipe Data / Factory Reset’.
- Run ‘Wipe cache partition’.
- Go to Advanced and run ‘Wipe dalvik cache’.
- Go to mounts & storage and run ‘Format system’.
- Next run ‘Format data’.
- Then run ‘Format cache’.
source – XDA Developers