Last week, while flying a waypoint mission on Litchi, I lost connection which didn’t concern me because it happens all the time on longer waypoint missions. It was an 8 minute mission. After about 10-11 minutes, the AC still hadn’t returned. Went looking for it. It was on the ground, on the track of the mission. It had crashed. It had hit hard enough to break one landing gear leg and dislodge the battery about an inch out of the battery box. I restarted the AC and it said to calibrate the compass, which failed. Upon further inspection, it had broken the compass clip off the board. I haven’t found anyone locally who can do the intricate soldering yet so I ordered, received, and installed a new board (and landing gear). Linked everything up and did a test flight. DJI GO worked well (3500 feet with video). AC would not respond to LITCHI. Deleted and reinstalled LITCHI app last night. Took it out this morning and flew 6000 feet with Litchi. Brought it back, landed, changed batteries and got no video feed. Closed Litchi, opened DJI GO and got a ‘Command timeout’. From looking thru threads, I’m thinking the original crash was maybe due to a ‘compass error’ which put the AC in Atti mode but since I didn’t have connection and couldn’t see the AC, I didn’t realize. Still not comfortable with the process for downloading flight data so probably can’t give y’all the info you need to help me, just vocalizing my experiences this week.