The Samsung Galaxy S III seems to be the first Samsung device to receive Android 4.2.1 Jelly Bean. The leak build is available thanks to a forum member Saturn from XDA-Developers . The I9300XXUFMB3 – Android 4.2.1 Jelly Bean test firmware brings with it a bunch of new features, including widgets on the lock screen.

Galaxy S3 Android 4.2.1 test firmware

The Touch Wiz Nature UX UI has been upgraded as well, thus making it much more smoother than the Android 4.1.2 Jelly Bean update. The new update also brings with it a secondary notification panel, which has additional toggles. Not only this, but the update also makes the device voice control enabled.  Samsung are still testing this firmware on the Galaxy S3, and will officially release the update after the launch of the Galaxy S IV on March 14th. The full list of features you get with this update are mentioned below:

New enhancements:

– Android 4.2.1 – JOP40D
– Improved Ripple effect on Lockscreen
– New Android 4.2.1 Lockscreen with widgets
– Daydream (Settings>Display)
– New Additions in Notification Center
– Notifications are more actionable
– Voice Command (Let’s you control various parts of the phone using voice commands)

Galaxy S3 Android 4.2.1 test firmware

The update is only for the International variant of the Galaxy S III (I9300) at the moment. If you want to try out this update,  be warned it is still a beta build, so various bugs and errors will be expected. Make sure to backup everything before doing so, and check if your device is compatible otherwise you will brick your device. If you guys find out more features do let us know in our comments  section below.