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How to Root Galaxy S2 GT-I9100 on Android 4.1.2

We reminds readers that it will not be held liable for any damage to the device. Users are also advised to verify that their devices meet following requirements.

How to Root Galaxy S2 GT-I9100 on Android 4.1.2 


1) Install USB Driver for Samsung Galaxy S2 to transfer files between the Android device and 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 manufacturer's warranty will be void once the phone is rooted. However, users can reclaim the warranty back by unrooting the phone later.

7) The root kernel used in the guide works only on Samsung Galaxy S2 GT-I9100, flashing this on any other variant might brick the device. Therefore, verify the model number of Galaxy device by navigating to Settings>> About Phone>> Model number.

Steps to root Samsung Galaxy S2 I9100 on Android 4.1.2 UHMS8 Jelly Bean

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.