These are instructions on how to root the THL Ultrathin 4400 (running on android 4.2) using the Root Genius Application on Windows Computer.

Requirements: Your Device should have at least 20-30 percent of battery to perform the rooting process.

Root THL Ultrathin 4400 using Root Genius

  1. Enable USB Debugging on your Smartphone. To enable USB debugging, Open Settings > Developer Options > USB Debugging > Tick to Enable.

    2. (Developer Options are hidden for Android 4.2.2 and above. Go to Settings > About Phone > Built Number > Tap on it 5-8 times to display this option).

    Developer Options
  2. Download and extract the Root Genius Application on the Computer. Once the Application is extracted, Launch it.
    3. download
  3. Once the Root Genius Application is launched, Connect your THL Ultrathin 4400 device to the computer.
    4. Root Genius
  4. Once Your device is connected to the computer, Root Genius will automatically detect it and enable the Root Button.
    5. Root Genius Connected
  5. Click on the Root Now button to begin the rooting process.
    6. Root Genius Root
  6. Now, Root Genius will automatically Root the device.
    7. Root Genius Rooting
  7. Once the Rooting process is completed, you will be able to see the Success Message at the End.
    8. Root Genius Success

    Congratulations! Your THL Ultrathin 4400 smartphone is now Rooted. You can also verify the root status of your device by using the Root Checker App.

Notes

[*] No data loss process: Your Phone Data like contacts, pictures, videos, music and etc will be not affected with the above method.

[*] RootGenius Android App: You can also root your Android Device through the official RootGenius Android App. If you wish, you can download the RootGenius Android App from here.

[*] THL Stock Firmware: If you are looking for the original firmware for your device, then head over to Download THL Stock Firmware page.

[*] THL USB Driver: If you are looking for the original USB Driver for your device, then head over to Download THL USB Driver page.

[*] Credits: RootGenius is created and distributed by SJRoot (Developer), so full credit goes to them for sharing the Application for free.