Can't open the back door on R3A

[minoltist7]

Stupid question - I pull the unlock lever, but nothing opens.
Does it require a significant manpower? I'm afraid to break something

 

[Sparrow]

There is a small safety catch under the knob, try moving that

 

[mfogiel]

You pull the lever and while it is pulled, you pull the rewind knob up, them it will open. ;-)

 

[minoltist7]

Sorry for my stupidness.... it's easy if you know how 🙂
I already loaded film.