Do not completely separate the body yet. There are still wires that must be disconnected. If the body is pulled apart too quickly, it may cause damage.
Do not completely remove the back of the camera. There are still wires that must be disconnected. Removing the back too quickly may cause damage to wires.
When lifting the cover, the only thing resisting your tug is the plug cover stopper. Just pull, you'll be fine.
When replacing it, having the covers snug on the plate will make it easier to push the whole cover on
when I connect and lens the camera replies that the lens is properly connected. One of the copper lens connectors on the camera’s body is kinda greenish rather than gold, so I wanna clean it, how to do that?