This is quite interesting, would you mind posting the picture of the back of it for comparison?
You can clearly see there is no indication of a white lock or unlock painted symbol or directional arrow. You can also see that I dug out the silicone plug and tried turning the screw. Like I said it is a #1 hex tool. The supplied hex tool is a 1.5 that fits the L/R and U/D adjustment screws.
I bought it straight from Leica’s Outfitter program and it is the latest offering. Retailers will be getting the new model soon if not already getting them. Want to trade? Lol.