Drone camera malfunction and tilt downward

Hi, just got myself a kf607 drone with 4k camera (sorry the device is not listed so i just simply choose from the list).

After a few flight test, the electronic movable camera automatic tilt downward after it bind with either the transmitter or mobile phone(the camera was front facing when turn on the drone).

The camera still work find for photo or video shooting.

So any suggestion to solve this problem.

Thank you