How to Root XWLSW Android 4.1.2 Jelly Bean on Galaxy S2 I9100

Jun 23, 2013

In case you have not already updated your phone, here is how you can update your Galaxy S2 I9100 to I9100XWLSW Android 4.1.2 Jelly Bean Official Firmware by going through our guide. And here is how you can root XWLSW Android 4.1.2 Jelly Bean on Galaxy S2 I9100.

In order to root your Android device, we will require to flash a rooting kernel to your phone. We will be flashing a rooting kernel in your Galaxy S2 I9100 running on XWLSW Android 4.2.1 Jelly Bean official firmware using ODIN. This will root your device. However, in this process you may lose your personal data and settings.

Please do also note that once your device is rooted, you warranty will be considered void by the OEM. You can, however, reclaim the warranty by re-applying official firmware update.


  1. Speedmod Root Kernel to root I9100XWLSW firmware [File: speedmod-kernel-s2-jb-k5-3-Odin.tar]
  2. Odin 3.07

Guide to Root XWLSW Android 4.1.2 Jelly Bean on Galaxy S2 I9100

  1. Download speedmod-kernel-s2-jb-k5-3-Odin.tar.
  2. Extract Odin zip file and you will get Odin3 v3.07.exe.
  3. Switch your phone off. And make sure that you wait 5-6 seconds to confirm complete the power down cycle.
  4. You will then put your Galaxy S2 I9100 phone in Download Mode by pressing and holding down the Volume Down button, alongside Home and the Power button. A screen will then come up; warning you about entering into Download Mode, press the Volume Down key to continue to enter Download Mode.
  5. Run Odin3 v3.07.exe with Administrator rights.
  6. Connect your Galaxy S2 I9100 with your PC. You will then see a notification appear in Odin in the bottom left saying “Added!!”. If for some reason, you do not see the said notification, try another USB port. If that too doesn’t work, then reinstall the USB driver. Once you successfully see the “Added!!” notification in Odin, you are good to go. Also, check for COM port being depicted by a number in ‘yellow’ to make sure that you have successfully added your device.
  7. Select these files in Odin at their respective buttons:
    • Click the PDA Button, and select the speedmod-kernel-s2-jb-k5-3-Odin.tar file.
    • In Odin window, make sure Auto Reboot and F. Reset Time checkboxes are selected.
    • Double check everything. Hit the START button to begin the flashing process.
    • Once the flashing process is completed, the phone will automatically reboot and you will see a ‘Green’ PASS notification in the top-left-most box. You can unplug the device from the computer now.

Your Galaxy S2 I9100 running I9100XWLSS Android 4.1.2 Jelly Bean firmware is now rooted. If there are any issues, feel free to post in the comments section for our staff to take a look at it.