Thanks for the info.While connected to the Internet, open the DJI GO app and go to the location on the map where you'll be flying. Zoom in as much as you can and then scroll around where you plan to fly and also the area surrounding in case of surprises. That will store the maps so they are available when you're offline. Note that they will eventually expire and you will need to cache again. Also, there is a setting to enable or disable caching maps, so be sure that it enabled first.