Owners of Samsung Galaxy S3 can now install the official Android 4.3 Jelly Bean update.

According to a post on International Business Times, Samsung Galaxy S3 has received a new test firmware, which, reportedly, has "been leaked from Samsung's test labs during the development process."

The official Android 4.3 Jelly Bean update with build number XXUGMK6 on Samsung Galaxy S3 can now be installed using the Over-the-Air update. However, those planning to access the official Android 4.3 Jelly Bean update for Samsung Galaxy S3 through the Samsung KIES desktop tool or the Odin flash tool cannot do so yet since the firmware is not yet available through these alternative tools.

However, those who cannot wait to experience the official Android 4.3 Jelly Bean update on Samsung Galaxy S3 can still install the firmware though the manual downloads and installation process. You can learn the manual installation process of the official Android 4.3 Jelly Bean update on Samsung Galaxy S3 on this post from IB Times.

Make sure to follow the steps provided on the post carefully to prevent issues during the installation process.

But before that, there are pre-requisites that need to be done first before manually installing XXUGMK6 firmware on the Samsung Galaxy S3 and some of them are listed below:

•  Make sure the battery level is 80 percent or higher.
•  The USB Debugging Mode on the Samsung Galaxy S3 should be enabled.
•  Verify the model number of the Samsung Galaxy S3, as the official Android 4.3 Jelly Bean firmware with build number XXUGMK6 is only available for GT-i9300 units. Visit Settings > About Phone > Model Number.
•  The Samsung Galaxy S3 should not be locked to a particular carrier or it should be factory unlocked.

Users of Samsung Galaxy S3 who will install the official Android 4.3 Jelly Bean update can expect these new features in their updated operating system:

•  Support for Galaxy Gear
•  TRIM Support, which makes the device faster
•  Samsung Wallet
•  Samsung KNOX
•  Improved RAM management
•  Updated GPU drivers
•  New Lockscreen
•  DayDream
•  Driving Mode