One of the members of XDA Developers Forum has published the files of a filtered 4.2.1 Android for the Samsung Galaxy S III ROM, which allows users of these smartphones can access to one of the latest versions of Jelly Bean.
Although officially Android 4.2.1 is still undergoing testing by Samsung and is not expected their arrival until the release of the Samsung Galaxy S IV, It is possible to access this preliminary edition of the firmware numbered I9300XXUFMB3.
Among the improvements in This firmware are:
- Improved the wave on the lock screen effect
- New screen lock Android 4.2.1 with widgets
- Improvements in the Centre of notifications
- Voice commands
- Daydream, which shows different information when the phone is idle
The firmware is available for download at this link, and you will find the instructions for completing the process and screenshots of the final result in SamMobile, where they have more details.