Samsung Galaxy S3 owners can now install Android 4.2.2 Jelly Bean update to their devices; however, it is important to take note that the firmware available is not officially released by the South Korean smartphone maker.

Thanks to the genius Android developers, a new firmware for Samsung Galaxy S3 was released to update it with Android 4.2.2 Jelly Bean OS. But Galaxy S3 users need to bear in mind that the firmware is based on a pre-release version from Samsung Galaxy S4

Installing the unofficial Android 4.2.2 Jelly Bean update will fix the issues regarding Wifi-connectivity. Furthermore, improvements and new features are also provided for the Android 4.2.2 Jelly Bean update.

After installing Android 4.2.2 Jelly Bean update to your Samsung Galaxy S3 device, some of the new features to notice are:

• New lock screen from Samsung Galaxy S4
• Enhancements from Android 4.2.2 Jelly Bean upatae
• New screen modes
• Driving or car mode
• Daydream feature
• Refurbished settings for the User Interface
• Additional options in the Notifications center
• Updated S Voice
• Samsung Apps that appear in full screen
• Battery-efficient features

Since this is an unofficial firmware, it is necessary for Samsung Galaxy S3 owners to be cautious when installing the Android 4.2.2 Jelly Bean update to prevent permanent damages to the device. And before further going into the manual installation process, some of the requirements needed are:

• Backup of all the data and personal information installed on the Samsung Galaxy S3
• Enabled USB debugging mode on the Galaxy S3
• 80 percent or more battery level
• Appropriate USB drivers of the Samsung Galaxy S3 installed on the computer
• The Android 4.2.2 Jelly Bean firmware which you can download here
• The ODIN tool needed to flash the Android 4.2.2 Jelly Bean ROM

For the comprehensive procedures on how to flash the device and install Android 4.2.2 Jelly Bean update, visit this post.