Hello group, I have a question: I have a SRT-101 here wih a non-working light meter, the needle is al the way up. I have measured "volt" inside the camera (under bottom cover), so the battery is working. I have read somewhere about a sticky needle, so I am trying to open the top cover. It is very difficult to remove the right lever and the left flat circle plate without damaging them. I don't know if I have to pull or turn them like a bolt. There is no easy movement in both parts. Any advice? I am lost at the moment.