The Samsung Galaxy S2 is definitely one of the best devices manufactured by Samsung and on the eve of the release of the Samsung Galaxy S3, the Galaxy S2 is still on the top of the list of the hottest Android devices. Samsung has rolled out the Ice Cream Sandwich update for the Galaxy S II but some of its variants are still waiting for the update.
Two firmware versions were released for the Samsung Galaxy S2 GT-I9100. Build I9100XWLP7 is for users in the United Kingdom and Ireland, and build I9100XWLP8 is for Optus subscribers in Australia. We have already covered the instructions on how to install the official Ice Cream Sandwich update for the Samsung Galaxy S2, and now we will teach you how to root it.
Now that your Samsung Galaxy S2 is running on official Ice Cream Sandwich, only one thing is missing: root, of course. You can do a lot of things with a rooted device. So, if you want to root your Samsung Galaxy S2 running on official Ice Cream Sandwich, see the instructions below.
- The instructions in this guide are intended for use with the Samsung Galaxy S2, model number GT-I9100. Applying these instructions on another device or model may produce undesired outcomes.
- The information in this guide is provided for instructional and educational purposes only. There is no guarantee that these instructions will work under your specific and unique circumstances.
- Use these instructions at your own risk. We shall not claim any responsibility or liability for whatever happens to you or your device arising from your use of the info in this guide.
- Samsung Galaxy S2 GT-I9100 (either the U.K./Ireland variant or the Australia variant)
- A Windows PC
- Samsung USB drivers properly installed on the computer
- Enable USB Debugging on your phone. Go to Settings > Applications > Development.
- Create a back up of all the important data (i.e. contacts, call logs, files and internet settings), just in case something goes wrong you have a back up. You can read our guides on how to backup your data locally and how to backup your data to the cloud.
- Make sure that you have enough battery power to avoid interruption of the procedure due to power loss.
- Install the appropriate firmware update for your phone.
- Download Odin3 1.85 to your computer: Odin3_v1.85.zip (437.8 kB)
- Download the rooting package (CF-Root-SGS2_XW_XEN_LP7-v5.4-CWM5.zip, 6.2 MB) for both firmware I9100XWLP7 (U.K./Ireland) and I9100XWLP8 (Australia)
- Extract CF-Root-SGS2_XW_XEN_LP7-v5.4-CWM5.zip to any folder on your computer.
- Extract Odin3_v1.85.zip into a folder on your computer.
- Double-click on Odin3 v1.85.exe program to launch Odin3.
- Turn off your phone.
- Put your phone in Downloaded Mode by pressing the Power button, Volume Down key, and the Home button.
- Connect your phone to your computer using a USB cable.
- Odin3 will recognize your device and will display a message saying “Added!”.
- Go to the PDA tab and select the rooting file that you extracted in step 1.
- Click Start to start the rooting process.
- Once the rooting is successful, you should get a “Pass” message and you can disconnect your phone. If you get “Fail” message, close Odin3, disconnect your phone, remove and reinsert your battery, and start over from step 3.
Congratulations! You have now rooted the official Ice Cream Sandwich firmware on your Samsung Galaxy S2 GT-I9100.
Ken is an expert on management and is currently engrossed with his newly started adventure in logistics management. But, that's only his second love. His first love, of course, and without being mushy when this is said, is Android.