Official Samsung Galaxy S2 JellyBean Update 4.1.2

OFFICIAL JELLYBEAN UPDATE FOR GALAXY S2


Android 4.1.2 features for Galaxy S2 

Buttery smooth performance and great stability (Thanks to Project Butter)

Full User Interface revamp (Same UI as of the Galaxy S3 and Note 

2) TouchWiz Nature UX

3) Samsung's Cloud services

4) New Lockscreen with many customisation options.

5) New features like Direct Call, Smart Stay and Pop-up Play

6) New widgets (from Galaxy S3)

7) Free 50GB Dropbox storage

8) Two home screen modes

9) New Notification bar with more Notification toggles
Google Now  

10) Galaxy S2 users who wish to manually install Android 4.1.2 


XWLST Jelly Bean on their device may follow our step-by-step guide.

Pre-requisites
1) Install USB Drivers for Samsung Galaxy S2 to connect the Android device with the computer.

2) Enable USB Debugging Mode on the phone to connect it with the computer and use Android SDK with it. [Press Menu> Settings> Applications. From there navigate and click on Development option and ensure the USB Debugging Mode is turned on.] 

3) As the tutorial might wipe out all data of the phone, create a backup. If the device is having any custom recoveries such as CWM/TWRP already installed then backup data using the recovery.      

4) The battery of the phone should have above 80% charge.
5) The device should be factory unlocked and not locked to a particular carrier.

6) The phone will lose custom ROM with the installation of official firmware. Additionally, it will lose custom recovery such as ClockworkMod/TWRP which will be replaced by stock recovery.

7) The device will no longer belong to a rooted version with the installation of official firmware.

8) The Android 4.1.2 XWLST Jelly Bean works only on Samsung Galaxy S2 I9100. As flashing this on any other variant might brick the device, verify the model number of Galaxy device by navigating to Settings> About Phone> Model number
Steps to install Android 4.1.2 XWLST Jelly Bean update on Samsung Galaxy S2 I9100

Step-1: Download Android 4.1.2 I9100XWLST Jelly Bean official update for Samsung Galaxy S2 to the computer   
Step-2: Extract the downloaded zip to get a file with .tar.md5 extension along with few other files   
Step-3: Download Odin 3.07 which will help to install Jelly Bean firmware on the phone. Extract the zip to get Odin3 v3.07.exe and some other files 
Step-4: Switch off the Galaxy S2. Now place the device into Download Mode by pressing and holding Volume Down and Home buttons together and then press the Power button until the construction Android robot and a triangle is seen on the screen. Press the Power button again to continue to enter into Download Mode
           
Step-5: Launch Odin on the computer as an Administrator  
   
Step-6: Connect the phone to the computer using USB cable while it is in the Download Mode. Wait until Odin detects the phone. When the device is connected successfully, the ID: COM box will turn yellow with COM port number. Also, the successful connection will be indicated by an Added message in Odin.
If the Added message does not appear, then try the USB port at the back of the computer. If that too does not work, then re-install USB driver  
  
Step-7: Select these files extracted from I9100XWLST folder to install on the phone
a) Click on PDA button and select the file with .tar.md5 extension  

Step-8: In Odin ensure the Auto Reboot and F.Reset Time checkboxes are selected. But uncheck the Re-Partition option; select it only when a .pit file is being used

Step-9: Click the Start button in Odin. The installation process should begin now and would take a few minutes to complete          
Step-10: Once the installation process is completed, the phone will restart automatically. Also, a PASS message with green background will appear in Odin indicating successful installation. After the home screen is seen on the phone, unplug the USB cable from the device to disconnect it from the computer  
Android 4.1.2 XWLST Jelly Bean official firmware is now installed and running on Samsung Galaxy S2 I9100. Navigate to Settings<About Phone to verify the new software version of the device.

 


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