The official XWLSN Android 4.1.2 Jelly Bean firmware for the Samsung Galaxy S2 GT- I9100 was released Monday and is now available for download from Samsung Kies. The users of the Galaxy S2, with the model number GT-I9100, can also install the new firmware on their device using a manual process. For more details, click here.

However, if you are already using the official XWLSN Android 4.1.2 Jelly Bean firmware on your Galaxy S2, rooting the new firmware could be the next thing that you would like to perform on your handset. By rooting your device, you can have a full control over it. In addition, it also allows you to run custom ROMs on your device in future.

The rooting process explained below also installs the latest ClockWorkMod recovery on the Galaxy S2 that will later help install custom ROMs on the device.

Users must keep in mind that rooting the Android 4.1.2 Jelly Bean firmware (XWLSN) on the Galaxy S2 will void the device’s warranty. However, users can reclaim the warranty by applying the official firmware update again.

Here’re some more important aspects to keep in mind before trying out the rooting process:

- Users must have proper backups for personal data, apps and settings

- The process is meant only for Samsung Galaxy S2 (GT- I9100) running on Android 4.1.2 Jelly Bean (XWLSN) official firmware

- The device should have at least 80 percent of battery life

- USB Driver must be installed for Galaxy S2 in your computer with USB Debugging enabled

Note: IBTimes cannot be held responsible for anything that goes wrong. Users should proceed at their own risk.


Step 1: Download Root Kernel I9100XWLSN for Samsung Galaxy S2.

Step 2: Download Odin v3.07 and extract the file.

Step 3: Turn off your phone and go to Download Mode on your phone. To do this, press and hold the Volume Down + Home buttons together and then press the Power button. After you see a warning screen, press Power button to confirm to enter Download Mode.

Step 4: Run Odin as Administrator and connect the handset to the computer via USB cable while in the Download Mode.

Step 5: If the phone is connected properly, you will see “Added” message in Odin. You will also see ID: COM port with a number in Yellow.

Step 6: Click the PDA button in Odin and select the file “Siyah-s2-v6.0b4.tar” that you have downloaded in Step 1.

Step 7: In Odin, check the “Auto Reboot and F. Reset Time” options.

Step 8: Click on the START button in Odin to start flashing.

Step 9: After the flashing is complete, you will see a PASS message with a green background in the left-most box at the top of the Odin. The Galaxy S2 will restart automatically. Once you see the home screen, you can unplug the phone from the computer.

[Source: Team Android]