hi guys, i've got this problem, i've searched but not found anything, the problem i have is that 3 of my doors will open with the central locking but the n/s/r will not, i've tried working the key back and forth to see if that will un jam it but it won't, it seems like its deadlocked as well because it won't open from the inside either, the central locking was working fine yesterday apart from the double lock unlock thing which has been like it before i owned it which i know is either down to a microswitch or the gm, any ideas on how to get the door open so i can at least take the door card off to have a look.

Thanks in advance
Rob