Samsung has been doing a good job at updating its top smartphones to Android 4.1 Jelly Bean, but we are yet to see an Android 4.2 update for any of Sammy’s devices.

According to Sam Mobile, Samsung Galaxy S3 users will have to wait at least another month before they get to enjoy Android 4.2. However, the Samsung specialists managed to get hold of a pre-release build of the Android 4.2.1 ROM, that it promptly made available as a flashable firmware package for anyone to use.

The build is mostly functional, with only some minor bugs to be expected. There are full flashing instructions (via Odin) if you are interested in giving it a spin. Note that the package doesn’t contain modem firmware, but your previous modem will remain usable.

Sam Mobile lists some of the improvements found in Android 4.2.1 for the Galaxy S3. These include:

  • 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)

Curiously, the site doesn’t mention Photo Sphere, which may be an indication that Samsung has removed it to replace it with its own rumored Samsung Orb, a feature that is reportedly similar to Google’s implementation. Of course, the fact that Sam Mobile doesn’t mention the feature could be just an oversight, or could be due to an other, unknown reason.

Check out some screenshots of the pre-release Android 4.2.1 update for the Galaxy S3.

[nggallery id=64]

Bogdan Petrovan

Bogdan is the European Managing Editor of Android Authority. He loves tech, travel, and fantasy. He wishes he had more time for two of those things. Bogdan’s phone is a Nexus 6P.