オリジナル投稿者： Joost Visser ,
To me it sounds like the autofocus trying to get a focus at its maximum speed. I’ve had the exact same thing on an iPhone X, where the noise indeed resembled a mosquito, rapid buzzing noise. In the end it turned out to be a software issue for me, and nothing short of a full clean install of the phone fixed it. Not sure if it’s the same in your case, but it’s definitely worth a shot before starting to open things up.