Mine failed four times before I got it right.
Some pointers that may help you if it doesn’t work first time.
Only do a Vision Sensor/ System Calibration if the
MA asks you too. Just like compass and IMU calibration don't waste your time. These machines know more than we do as to when they need a check. I know some insist on checking anyway.
If you use a second or third monitor turn them off and only use your primary one.
You don’t have to be exact following the tracer around with your aircraft but give yourself the best chance and hold it with both hands. Yes, stop what you are doing with the other hand.
When you do the rear sensor you will have the USB C cable sticking out of the back of the aircraft, coil it round to the front, on top, to create as little obstruction to the sensors as possible.
If you get an obstruction warning its probably best to start again.
If it fails, try again. If it continually fails, get in touch with DJI and discuss it with them. You will only get a reply when you want to send it back for repair. You are important but to any company your money is the only importance to them.
Clean all sensors and make sure you have enough juice in your craft and puter.
Try a different computer and or operating system.
Reboot, reboot. Even reboot yourself, try it again next day
Happy calibrating.
