I’ve just spent 45 minutes on a call with Ring support, and to say it was a complete waste of time is an understatement. The question needs to be answered properly, and the instructions need to be properly addressed!
So. To put it as simply as possible, so the people at ring can follow:
There is a terminal block inside the camera. It has (on the camera side) a blue and thin white wire connected to the N side. On the L side of the terminal block, there’s a thin black wire. In the instructions, the blue wire and thin white wires are connected to the N side (all good so far), and in the instructions, the brown wire is connected to the L side of the block. There is no mention of the thin red, or thin black. The thin red wire is joined to the brown wire and capped as per the images others have posted.
People need to know if the brown and thin red should be connected to the L side of the terminal block, along with the black wire.
Now, none of this has anything to do with the supply coming out of the wall, so telling us to consult a qualified electrician is nonsense. Is is a product issue, and potentially a safety one at that. Not even a qualified electrician would know where the red and black thin wires are supposed to be connected to unless a) they work for Ring or b) practice magic and their crystal ball is wired up correctly.
I for one will be taking it further as Ring are selling a product without adequate instructions which at a guess likely contravene both Part-P and dry likely BS60335. I’m about to drop a line to the HSE as I personally thing the product shouldn’t be on sale if there’s any doubt about the safety of its internal wiring.