I apologize if I'm duplicating a post. My Mavic air loses its video transmission as soon as it lifts off the ground. This is a frustrating issue, I sent my original Mavic back to DJI and they sent me a replacement which I wasnt to happy about. Apparently some board was no good. My new drone is doing the same exact thing the original one was doing. I'm convinced they put the bad parts in a new drone body and sent it back to me. I've tried everything different SD Cards, cables, no SD Card, calibrating IMU, Compass, change location of flight and still lose Video transmission as soon as I lift off regardless of how close I am to the drone, I changed channels 2.4, 5.8 no improvement. Please Help someone, I'm at my wits end. And by the way I flew the drone for several months without any issues, not sure what happened, no crashes or trauma ever sustained.