Konica Pop 10

User manual:
http://saturatedimagery.co.uk/wp-content/uploads/2012/06/Konica-Pop-Manual.pdf

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Posted in a separate thread:
USAFRet - Thank you for your reply but my camera is a Konica Pop 10 (TEN), which does not seem to have any visible lever or button to open the back. So I am still looking for a solution.

In future, please use the black "Post an answer" button to reply to existing threads.
 
I thought I had the right user manual. Oh well.
Searching, I find some manuals for sale - $15 or so.

But for that camera, possibly the rewind lever pulls up to open the back
Or some other lever.