I have litchi and my Samsung galaxy S6 phone works well with it. The problem is I cannot get it to show map. I have the phones gps on. I went to google maps and put in my location and it found me. I even downloaded the map for offline. I turn on phantom 3s, and controller, let it warm up. then connect my phone to the drone. Everything is good, shows satellights camera is viewing but no actual map. I load mission all the waypoints are there but on a blank screen. what am I missing? thanks for the help.