How To Install Official 4.2.1 XXUFMB3 Firmware On Samsung Galaxy S3

The samsung is recently released some Extra cool roms for its very own Device Samsung Galaxy S3 (Gt-i9300).




It has some cool features listed below:-

- Android 4.2.1 
- 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)

Let us Know IF you Find More...


  • HOW TO INSTALL :-

Warning-I am not responsible for any kind of damage to your device you are doing this process by yourself.This firmware available for installation is repackaged into odin flash able firmware.So keep in mind this while you are flashing the rom...


1.Download the rom from HERE.

2.Open Up odin multidownloader 3.04.exe.




3.Put your download mode By pressing Volume down key+home key+power key.

4.Connect your phone to pc via usb cable .




5.After connecting your phone it'll look something like above image .The comport will turn in either blue color or yellow.


6.If it did not show anything then install this Usb Drivers.


7.After all click on PDA and select I9300XXUFMB3_I9300OJKFMB3_HOME.tar.md5

8.Make sure that you haven't selected anything except the above instructions...

9.Click on start button and relax for some minutes...And wait until the odin shows pass sign in comport box.

10.IF your facing issues while booting then follow this steps:-

          i. Remove your phones battery.

         ii. Reinsert it and enter in recovery mode by pressing Volume up+home  key+power key. 

         iii. Use volume rocker keys for scrolling up and down,power key to select an option.

         iv. Select wipe data/factory reset ,select yes.Then select wipe cache partition and    select yes.

         v. Finally select reboot system.

If your phone booted properly then continue to set up device. 

Here are some Screenshots of the Rom-





Please let us know if you are facing problems .Need feedback from your comments below......

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