I bought a 135N back for my SQ-Ai via ebay. No, it didn't come with instructions. I thought I figured out how to load the insert, but when I get it all together, I can't advance the film nor will the shutter fire.
Let me run this by you guys in case I didn't load it correctly:
Feed film between rollers and pressure plate and fix on take up spool
Replace insert in back and close door (getting it back in is a PITA)
Yes, the darkslide is out...
Any clues as to what I'm doing wrong?