My shot counter reset back to 1 after I was 12 shots in?

[joewesser]

So my konica z-up90e decided to reset the photo counter to 1 after i was 12 shots into a roll. I know this can happen if you open the back of the camera where the film is stored but i did not do that initially. I did that after discovering the issue to check if the film had been rewinded and it had not been (i am aware this can bugger a few shots on the roll). So I am unsure how it went back to shot one, what do you guys think?

[steve_gallimore1]

Film door microswitch?

 

My grandfather had one of these in the 90s, it went horribly wrong on more than one occasion, full electronic hissy fit requiring it to be put into a dark bag in order to have the film removed.

 

I like my Konica SLRs, the lenses are some of the best of their time, the electronics, not so...

 

Fortunately, they're all fully mechanical.