Every time I tap to change RC home position I get "Warning: The mobile device's GPS signal is weak and its location cannot be acquired" This is not always true as I can see on the map the new home point location. So it is confusing to know when it is true or not. Apart of that I had an incident where the RC (iPad mini 2 Cell) GPS had lost satellites signal while performing a Follow Me mission in an open area. As I could see in the recorded data it was a short warning but I didn't see it during the mission. I am not permanently watching the screen, the quad has also to be watched so I suggest DJI app to keep these warnings until the user taps to close them. Anyway I purchased an external Bluetooth GPS XGPS150A and paired it with the iPad mini 2. This Dual GPS has an app that displays connected satellites and the position confidence is good/excellent But I still am getting "Warning: The mobile device's GPS signal is weak and its location cannot be acquired" What can I do?