What's the secret to using the DJI Go built in map? I have a Phantom 3 Profession. I just bought a Samsung J3 cell phone with data, gps and wifi, running Android 5 OS. I installed the DJI Go app , have an account....go outside, get a gps lock from the drone and the phone. However.....the map's lettering is in chinese and when you zone in from 'earth view'....the map is blank and grid lines.