How to Root Samsung Galaxy S2


The present root method is provided for all the Samsung Galaxy S2 I9100 owners that have run the latest Android 4.1.2 Jelly Bean XWLSS firmware who want to root their device or to install a custom ROM firmware, custom recovery tools, and to do other custom optimization on their S2 device.

During this step by step guide, you will learn how easily you can obtain the root rights on your Samsung Galaxy S2 device.

Required

  • USB Driver
  • Siyah-s2-v6.0b4.tar
  • Odin v1.85
  •  Install USB Driver for Samsung Galaxy S2 to transfer files between the Android device and computer.
  •  Enable USB Debugging Mode on the phone to connect it with the computer and use Android SDK with it.
  • The battery of the phone should have above 80% charge.

Step-by-Step Guide

Step-1: Download root kernel for Samsung Galaxy S2 to the computer  

File name: Siyah-s2-v6.0b4.tar

Step-2: Download Odin v1.85 which will help to root Jelly Bean firmware on the phone     

Step-3: Switch off the Galaxy S2. Now place the phone in 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 appears. Now press the Power button again to continue to enter Download Mode        

Step-4: Run Odin on the computer   

Step-5: Connect the phone to the computer Using USB cable while it is in the Download Mode. Wait until Odin detects the device. When the phone is connected successfully, the ID: COM box will turn yellow with COM port number. Also, an Added message will appear in Odin indicating successful connection. This step is likely to take some time       

Note: If the Added message does not appear, then try another the USB port at the back of the computer. If that too does not work, then re-install the USB driver.

Step-6: In Odin, click on PDA button and select the Siyah-s2-v6.0b4.tar file

Step-7: Ensure the Auto Reboot and F.eset Time checkboxes are selected in Odin. But uncheck the Re-Partition option

Step-8: Double check everything and finally click the Start button in Odin. The installation process should begin now and would take about few minutes to complete

Step-9: Once the installation process is completed, the phone will restart automatically. When the home screen appears, unplug the USB cable from the phone to disconnect it from the computer

Samsung Galaxy S2 I9100 running on Android 4.1.2 UHMS8 Jelly Bean should be now rooted successfully. Open the app drawer of the phone and check for an app called Superuser from the list. Also, to verify the root status install Root Checker app from Google Play Store.

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Source : http://www.ibtimes.co.uk/articles/470917/20130524/galaxys2-gti9100-root-android412-uhms8-jellybean-clockworkmod.htm