Sure that you know what you are doing, you can go ahead and replace the camera.
To attempt a DIY MacBook camera repair is not recommended. While it is possible to order a camera replacement online, trying If the camera is physically damaged, the only ideal solution is to Below, we have listed some common causes: The main causes of the Facetime camera not working MacBook problem range from mechanical to hardware issues, just like what we may be facing with the iPhone camera issues. There are a number of reasons which can cause the MacBook Pro/Air webcam not working problem. Why Is My Mac Camera Not Working (on Zoom/Facetime)?
