Xiaomi 1 Extreme Edition shakes the phone with noise.

if there is noise in the camera position, the camera lens module at the rear of the mobile phone is more complicated, with a multi-lens module and a motor for focusing the lens.

In order to ensure that the lens moves slightly when focusing, a small gap is reserved in the camera module, and the motor of the camera will make a sound due to inertia when shaking the mobile phone vertically;

If the camera itself supports OIS optical anti-shake, for better anti-shake effect, the gap reserved in the camera module will be larger, and the sound emitted by the camera motor when shaking vertically will be louder than that of the camera that does not support OIS;

this is a normal phenomenon, and it won't make sound voluntarily in daily use. Please feel free to use it.