These are instructions on how to root Samsung Galaxy S2 HD LTE SGH-I757M (running on android 2.3.6, build id GINGERBREAD.UGLCA) using Odin on Windows Computer.
Requirements: Your Samsung Galaxy S2 HD LTE SGH-I757M should have at least 30-40 percent of battery to perform the rooting process.
Root Samsung Galaxy S2 HD LTE SGH-I757M using Odin
- Download and Install Samsung USB Driver on the computer. If in case Samsung USB Drivers are already installed on the computer, then SKIP this step.
- Download and extract the root files on the computer. Once the archive is extracted, you will be able to see the following files:
- Enable Developer Options on your Samsung mobile. To Enable Developer Options: Open Settings > About Phone > Tap on the Built Number for 6-8 times until developers option is enabled.
- Enable OEM unlock on your Samsung mobile. To Enable OEM Unlock: Open Settings > Developer Options > Tap on the OEM unlocking checkbox > Tap on Enable > Tap on Delete All button.
- Now, Power off your mobile device.
- After switching-off the Smartphone, you need to boot into Download Mode. To boot into download mode Press and hold Volume Down, Home Button and Power Button at same time for 5-8 seconds (you have to press and hold the buttons at same time) until download mode is active.
- In the Download mode you will be able to see a Warning Yellow Triangle Sign. In this situation you have to press the Volume up key to continue.
- Now, Open Odin3 (found in the extracted files, that you have downloaded in the Step#2) on your computer. Then connect your Smartphone to the computer.
- Once you have connected the Smartphone to the computer, Odin will automatically recognize the device and displays Added message at the Log Area.
- Once your device detected by Odin, Click on the AP/PDA button and select the CF-Auto-Root.tar file (you have downloaded this file in step#2).
- Now, click on the Start button in Odin to begin the Flashing.
- Flashing usually takes 30-50 seconds to complete the rooting process on your Samsung Galaxy S2 HD LTE SGH-I757M. Once Rooting process got completed, you will be able to see a Green Box with Pass written on it in Odin. During this process Smartphone will re-boot automatically.
- Once you see, the Pass message in Odin, you can disconnect your Device from the computer.
- Now, to make sure you have successfully rooted your Samsung Galaxy S2 HD LTE SGH-I757M, open the Applications Menu on your Smartphone and Find SuperSU App. If this app exists on your Smartphone, then it means you have successfully rooted your device. Congratulations.
Optional: You can also verify the root status of your device by using the Root Checker App.
[*] Warning: The above tutorial only works for Android 2.3.6 with the built id GINGERBREAD.UGLCA.
[*] If your device isn’t running on the same built id GINGERBREAD.UGLCA, then you may need to download and flash (install) the firmware based on the same build id. Later try to root your device from the above method.
[*] No data loss process: Your data including contacts, pictures, videos, music wont be affected using the above method. In short, no data loss process.
[*] Samsung Stock Firmware: If you are looking for the original firmware for your device, then head over to Download Samsung Stock Firmware page.
[*] Samsung USB Driver: If you are looking for the original USB Driver for your device, then head over to Download Samsung USB Driver page.
[*] Big thanks to Chainfire for their CF Auto Root file for Samsung Galaxy S2 HD LTE SGH-I757M. Without using the CF-Auto Root file, the above tutorial was not possible.