Hi forum, i have a bit problem with my phantom 4 pro, when i start the unit, the motor´s test is good, but when i run the power on the motors to begin the fly sometimes one motor have dubts on begin to rotate with high speed, only fail one or two seconds, and next rotate perfect like the other 3 motors. i swapped this motor, and continuous the same problem on the same position, exactly the position is indicated on my picture added.
What can i do it? A problem PCB ?  maybe software?
I wait any help. Very thanks.
Jorge.

Hello and good day Jorge. i am sorry to know that you are having issues with the motor of your DJI Phantom 4 Pro. Since this issue is happening on your DJI Phantom 4 Pro. The best thing you need to do is to contact DJI Support at https://www.dji.com/support for further help on this matter. Thank you.