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Install Android 4.2.1 I9300XXUFMB3 For Samsung Galaxy S3

Samsung starting from the month of March should release android 4.2.1 Jelly Bean for Galaxy S 3 and today as the sign of the official firmware is released, Galaxy S3 get the first leaked firmware based on the latest major release of Android. The firmware is available for the flash via Odin thanks to a user forum of XDA-Developers.

I9300XXUFMB3 firmware for Galaxy S 3 is based on Android 4.2.1 Jelly Bean and is the System dump provided by XDA user, that deserves a lot of thanks.
Still do not know the main innovations of the firmware but according to initial reports the changelog would be composed of:
  • 4.2.1 Android – build JOP40D
  • Improved ripple effect in lockscreen
  • Lockscreen with support for widgets
  • Daydream
  • What's new in the notification Center
  • New voice commands for galaxy s3 to use
Here is the link from where you can download the file to flash.
I9300XXUFMB3 if you don't know how to flash it read how to flash firmware to galaxy s3 via odin.
SamMobile wants to point out that the firmware is not yet a final version actually has some minor bug fixes but it is perfectly usable for daily use. Take also the binary counter in "modified" and being a no brand version will not install any modems, which will remain the one already used.
To install I recommend to follow this short guide (do with your own risk)

Install Android 4.2.1 To Galaxy S3

  • Open Odin 3.04;
  • Restart the phone in download mode (Home, Power and Vol Down);
  • Connect your smartphone to your computer and wait until the connection recognized by Odin;
  • Add the PDA archive (check both put the checkmark to repartition);
  • Start the flash;
Here are some screenshot
install android 4.2.1 to galaxy s3
 If you want to know when the release of official android 4.2.1 for Samsung Galaxy S3, you can subcrive to this blog, or follow us. We will update when the official 4.2.1 is released

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