Can you tell me when the camera will be disassembled for maintenance?

I can see that. When the camera is disassembled for maintenance, tools need to be used for disassembly, so there will be traces of screwdriver or other disassembly marks on the camera shell, which will be seen if you are careful. Camera, referred to as camera for short, is a kind of equipment that uses the principle of optical imaging to form images and records images with negatives. This is an optical instrument used for photography.