SFX stuck Mirror

I have an SFX which jammed with the mirror locked up at the end of a roll. It also will not rewind or accept new film. The mirror can be manually pulled down but will not latch open.

Anyone got any ideas to release the mirror?

Only general comments, but first of all I would try replacing the camera batteries. Some Pentaxes will lock up the mirror if battery power is too low. Also never, ever, pull or push a SLR mirror anywhere, in fact avoid touching mirrors at all. If the mirror ends up even slightly out of alignment your pictures will not be in focus.

Other than that, it could mean a repair job. Hope the battery suggestion works!

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Best regards, John