Unplug the USB cable. Go to Settings > Developer Options on the stereo, tap Revoke USB Debugging Authorizations , turn USB debugging off, turn it back on, and reconnect the cable. Issue 2: Head Unit is Stuck on the Boot Loop Logo
Go to Settings > System > About Device (or look for a "Factory Settings" menu, password usually 1234 or 8888 ). how to root android car stereo