The small buttom that releases the film back has come out on the camera body. It appears to screw back in a bit but will not then press inward far enough to release the back. Any suggestions? Thanks in advance.
Yes, the dark slide is in. I also was able to defeat the dark slide interlock with a small jeweller's screwdriver but the back is still afixed to the camera.
There is an interlock for the back removal button. If you have a spare back look at the protrusion by the lower locking catch. I believe that you can remove the lower part of the back (the hinge & back cover will come off. There are 2 small screws holding it on. You should then be able to press the pin in the body & unlock the back.