Uninstalling System and Carrier Apps. 1  1. Root your Android device. 2  2. Install the Android SDK on your computer. 3  3. Connect your Android device to your computer via USB.  4. Turn on USB Debugging mode on your 1  device. 5. Launch ADB on your computer.  6. Display a list of applications installed on the 1  device. 7. Find the app that you want to uninstall.