error messages

I haven't flown regularly for a couple of months and usually use Litchi to fly waypoint missions when I do. Since the last Litchi IOS update in June I have suddenly been getting 2 error messages. The first is "GPS error, contact DJI for repairs". The second message is " No video downlink to...

Folks, I went a couple of weeks without flying due to work events. When I went to make my next flight I got stick calibration errors I tried to calibrate, but if I understand it correct, the bar at the bottom should show your progress. It never registers any progress. And I worked it for...