"The 'double memory card slot cover is missing, what can I do?"に関する回答Don't know if there is a way to make it work without, but there are two, very small, lever switch sensors on the sliding door tray that tell the camera that the door is open or closed. If you can't find a proper door to replace with, you may be able to find a way to mimic the closed door by adding a dot of hot glue or tape or something to keep them in the closed position. You'll need to take the camera apart to reach the sensors. Start with the bottom plate, then the right side, then top, then left side where the sliding door tray is located. Hope that helps.