Strange sound when connecting the drone battery

Hello I’m minwoo

There’s a strange sound when connecting the drone battery.
I don’t know why.
I need your advice.

Calibrate the ESC’s. .

1 Like

thank you for yout reply

I have completed all ESC calibration.
I did the overall and connected it to the receiver. I even did individual calibration.
However, the symptoms continue.

Find the motor thats making the noise and replace the ESC unless its all of them then I am not sure

Thanks for the reply.
I saw this late.
And I’ll try it and come back!

Problem found.
After the binding of the controller and receiver, the problem of the lack of the value of the controller in the mission planner was solved, and the noise problem was also solved.
Transmission calibration has also been carried out.
Thank you.