Chosen Solution
On my D500, the Metering Mode button isn’t working. The other 3 buttons (WB, QUAL, and Mode) are working. It has already been into the shop once (6 weeks and $150) to just be told there was nothing found and it’s working now! A couple of times, a sharp hit to the top left corner would have the button working again, but not this time. Since I’m in IT, I suspect it is just a cable that is loose. Is there a teardown of the D500 that shows where all the screws are that I need to remove?
I have opened it up myself, and reseated the connector inside the top assembly, as it was out of place. When I put it back together, it didn’t work, but a 2nd reseat worked to get it functional, not sure why. I am going to work on making a repair guide; not sure when it will be ready. I have created the guides of the steps that I took to resolve my issue: How to Fix a not working metering mode