File Required(Download by clicking on it)
- SiyahKernel to root I9100XXLSJ firmware [Filename: Siyah-s2-v4.0.1.tar]
- Odin3 v1.85
How to root Galaxy S2 I9100 firmware I9100XXLSJ and install CWM Recovery
- Now extract Odin zip file and you will get Odin3 v1.85.exe and Odin3.ini under extracted folder.
- Power off your phone. Wait 5-6 seconds for vibration to confirm complete switch off.
- Now, put the Galaxy S2 GT-I9100 phone in Download Mode by pressing pressing and holding down the Volume Down and Home buttons while pressing the Power button. A Warning! screen will come up; press Volume Up key to continue to enter Download Mode.
- Now run Odin3 v1.85.exe (see Step 2) as an Administrator because Admin privileges is required to complete the process smoothly.
- Now connect your Galaxy S2 GT-I9100 with your PC using USB cable. A message will arrive under Odin’s message box in the bottom left saying “Added!!”. If you don’t get the same then you should try another USB port (try USB port located in back in your desktop PC). If that too don’t work then you should then reinstall the driver. If you successfully see the “Added!!” message in Odin then you are ready to go in next step. You should also see COM port with a number in Yellow if you successfully added your device.
- Select these files in Odin at respective tabs:
- Click the PDA Button, and select the Siyah-s2-v4.0.1.tar file.
- In Odin window, make sure Auto Reboot and F. Reset Time checkboxes are selected.
- Double check everything that we mentioned. Now, once satisfied hit the START button to begin the flashing process.
- Once flashing completed, you will see a PASS message with green background in the left-most box at the very top of the Odin. The phone will then automatically rebooted and soon you will see the Samsung logo. You can then unplug the USB cable to disconnect your device from computer.