Possibly canbus wires broken in the door rubber boot or the lock isnt getting the signal to unlock.
Or the microswitches in the door module are gunged up and not responding to the signal!
Anywhere near Manchester, at all as will be there end of week for few days.
Over in salford from thursday iirc, so you cant even release it from the inside by interior handle?
Wow! I just swapped mine over! I wasn't aware it could cause problems! Kinda glad, I would never have done it!had bad experiences changing battiers on the fob. cost me £240