Door lock stuck

[GT6k]

My passenger side door lock disengages, door pops about 10mm and that's as far as it goes. Emergency override does the same, I got my hand behind it and i can work the levers, I identified the unused childlock lever but still no joy,. Its challenging my acrobatic skills to get at the back of the lock with the door shut. Has anyone got any photos of what the back of or innards of the lock looks like ?

[Byker28i]

has the door dropped on the hinges and is binding?

[GT6k]

No the door moves freely, i can pop and reset the lock by manual or electric systems it moves freely 10mm then stops and wont come out any further. Something is preventing the lock moving past the second detent.

[GT6k]

Finally got it free, the plastic part of the lock has started to break up and a piece was jamming the pawl from freeing enough to get past the second lock position. I had to make a special tool to insert from the outside and push the pawl down. So is it an Astra (mk1?) lock ?