My hyundai i30 2013 central locking is playing up, on opening all the doors open except the boot and the rear passenger door driverside .but the boot will open when you press just the boot button.

SOURCE: DOOR LOCKS(POWER)

your linkage has come off in side the door

SOURCE: car doors will open boot will not open

Your boot lock switch has proberly came loose or has no power or earth to it. You will need to check these things.

SOURCE: vw bora central locking

I would check the electrical wiring connector that connects to the B Pillar (the structure between the front and back doors looking for a pinched wire. If you move the rummer boot around a bit I think you can get a pretty good look at the wires and you will be looking for one that might be dangling loose. If this sort of thing isn't really up your alley a trip to the dealer may be in order.

SOURCE: vw transporter 05 central locking not working

water ingress in wiring loom below drivers seat, mainly loss of power to pin 23 middle multi plug blue and red wire middle multi plug.

remove drivers seat/frame trace wire back to corroded connection and repair. you may also have to remove passenger seat depending on where the break is. dealer quotes upto 2 hrs

SOURCE: 2006 bmw 325i remote only unlocks driverside door.

fuse 56 and 57 control central locking,the issue is caused by surges typically in the front door lock actuators, normally at a dealer they would replace fuse 56 and 57 with a 20a mini fuse and if still occuring repl the door lock(s) that dont work or typically both front, first replace fuse 56 and 57 with 20a fuses as were too small from factory and than operate ten to 15 times, if it doesnt work at first dont panic,let the car go to sleep which takes about 16 min and than try again this problem has nothing to do with the key fob or the lock unlock button inside,also the fuses are located behind the glove box just rere the access panel and they are found at lower left section