I've read most of the firmware threads but don't see this problem: I have a new DJI 3 Professional. I tried to fly yesterday but it had red cautions all over the place and the app says upgrades are needed for the aircraft, the battery and the camera, as well as an IMU error. I've now watched 3 different vids, gone meticulously through the process 6X and done everything everyone says. All I get is solid red lights on front, red-green-yellow flashing on rear, a solid green light on the indicator and an endless beep-beep. No beep-beep-beep-beep and no beep ... beep-beep like I'm supposed to get. I left it yesterday for well over an hour, twice. The card, when put back into the PC, doesn't show the 'success' file. Any ideas or suggestions?