I've got a couple of 4-way switched adapters where one switch won't work.
The screws that hold them in are different, one has what looks like two indents that might just be accessible with thin long nosed pliers and the other has three indents.
How do I know what screwdrivers are required and where from? I don't think I need an expensive set but I don't want to end up with breakable junk either.