Getting my OM2 working

[Lemonhawk]

I got some silver oxide 357 batteries (they work in my HP 42s calculator) but still the mirror was locked up. If you look on the shutter ring there is a "reset *" (the star is red). Rotate this to the red dot on the lower right and push the little button there to get mirror back down! After being off for years it was nice to see it operating, need to run some film thru it now.