first thing check for broken wires in the rubber elbow. bet at least one is broken, which can have funny side effects...
passenger side, probably the paddle of death is broken.... just ebay golf mk3 lock repair kit (take handle out and check if you got 'a' or 'b' variant
boot does not have a micro switch i think, so all you could unlock from there is the boot.... if that does not work take trim off and have a look at the lock itself. (that won't harm for the others as well - they never mind a good clean and bit of grease)