Took my first flight with my brand new P4. I spent 1 week digesting everything I could about the P4. This is a new hobby fpr me. My flight lasted about 2 minutes and it started to rain. But, I did get it flying with all systems go.......except no map. 13 sats were aquired. Now I know the map screen is blank because I have no data connection with my Nvidia K1. I cannot tether it to my phone as it too has no data service. So that being said, how can I get map data in my K1 that DJI Go and Litchi can source from and use when I go fly? If people are in the middle of nowhere (as is common) where there is no wi-fi, or cell there must be a method to pre download map data these apps can use for operation. Right? So how is this done? BTW, I am flying in mainland China so I have the P4 switched to convert map data if that means anything. Please help. I want to use Litchi to fly missions.