How do I replace the memory card cover?

I have taken out the three screws around the eyepiece. The two screws on the left side of the body. The screws underneath. The screw under the rubber thumb grip. But the back of the camera still does not want to come off.

Does anyone know if there is a screw underneath the eyepiece diopter adjusting wheel? If so how do you get to it.

So far the back wants to come off on the left had side but not the side with the memory card cover.

Does anyone know what the trick is?