Alarmist sensationalism. Why would a company shut down only because DJI is not allowed to have new models of drones approved by the FCC in the future? The DJI drones they're currently operating will continue to function and they can be used legally.
The 40021 error will clear when you replace the cable. there is no manual check for the PTZ, except trying a known "good" cable. if your having a problem the best thing really is start with a "Fresh" cable...Sorry.
I realised. Also i found at github the hardware info of those IC and motors: WM160 Gimbal Roll Pitch motor driver board
I will then buy the ptz check board, ¿is there any info for checking it manually with a multimeter?.
About error 40021, i...
I didn't know that about DJI Care. Ugh... Well, I figured if I can build a drone, and do a body swap of an Avata, I can probably figure out the arms on the 3S. I guess I don't have to worry about voiding the warranty... lol...
Best place for...
Yep no worries there lol Ebay is your friend for the arms they may be hard to pin down but I am sure you can get them.
There are many questions about existing care refresh plans that DJI has no answer for at the moment I don't think DJI will be...