With all the problems that S3 owners are facing with the official Android 4.3 update from Samsung, many of you are not holding out hope for a rapid fix to your problems. Neither are we. So here’s how to downgrade your Galaxy S3 back to Android 4.1.2, the last firmware update prior to the current bungle. Downgrading your OS version probably never sounded so exciting.
Here is a Link to show you how to go back until Samsung fixes the issues