Anyone got a diagram of a drivers door lock

My drivers door refused to open on my Superb 2 last night, but could be opened from the inside all other doors open and lock as normal , I have to ask here as folk seem more knowledgeable.

Tried the emergency opening bit to no avail, then had a look in daylight today and it feels like something has come loose on the handle just inside the door skin.

Anyone had a similar experience, and how was it rectified