FIXED IT!
45 MINUTES OF PAIN AND FRUSTRATION.
i'll say what i did so there is a log of how to: open rear door when child lock is on and outside door handle is not working.
please read all before attemping this.
this is how i did it... i hold no responsibilty for any damages/loss to car or persons involved, this is not a guaranteed fix.. but it fixed my problem.
please do your own risk assessment.
make sure ignition is off and even maybe disconnect battery for safety.
move front seat forward.
get in back and simply pull the plastics off from around seat belt area(these come away if you pull in centre near joint of top and bottom(just look this will make sense)
remove plastic cover on door handle (wide flat trim remover in bottom,pull away)
now remove 2 bolts that fasten door card to door.
now put fingers behind plastic door card at top, where it meets the window. grip and pull up and outwards all way along.
now grab front edge of door card and pull towards inside of car.
from above you should now have access to inner door.
now remove the visable bolts along top edge of inner door skin.
once these are removed you will have to bend metal skin at top away from window (use a coulple of screw drivers) only bend back towards rear of car.
now get a torch look into door skin, look towards door catch. follow the rubber covered cable from outer handle where the rubber ends, you will see bare cable near white plastic.
this is the tricky bit i used braizing rod/welding rod. anything with strong short hook.
hook the bare wire push on door and pull your hooked cable....carefull not to fall out when door opens.
once door is open remove last fixing screw at bottom centre of door, pull cable plugs from socket, un hook cable off inner door pull handle. now door card should be free to put down.
i then quickly took child lock off, shut door locked unlocked then tryed to open, all ok
finished...
go get a brew, chill out. then put the carnage caused back together.
I'LL BE TAKING MORE PHOTO'S WITH A BETTER QUALITY CAMERA IN DAYLIGHT, IF NEEDED MSG ME AND I'LL UPLOAD