This is not a problem. It is a question. What is the mechanism that makes the gimbal noise when a firmware update or gimbal auto calibration is being done, is it a buzzing capacitor or some sort of motor? It happens for a second also during initiation. This is not a problem. It happens in every p3 drone.

Hello there. We apologize for the inconvenience. Usually, if you're going to update the firmware, there will be a beeping sound. Just like this in the tutorial video:

What is inside that makes the beeping sound?

djilover10 Posted at 2018-7-24 09:19
What is inside that makes the beeping sound?

Hello there. Sorry for the late response. We will confirm this with our engineers. Your patience will be much appreciated.

Hi there, the sound of power-on is caused by the motor vibration which controlled by the ESC, and the noise during the update and calibration is emitted by the ESC. Hope this makes it clear.