R trigger button not working.

[Flavor]

We test each board before we send it, and one of the things we test is every button. That doesn't mean the button couldn't have died, but I think that's a lot probability guess at this point.

"So, what are high probability guesses?" you may ask.

I definitely would guess the shoulder plastic if you hadn't mentioned that it has the same problem with or without that. I have even seen them click and not work when the plastic is impeding the motion. It's like click, then move a tiny bit more, then make contact.

The other high probability guess is the solder joint (or pin header connection) between the Pi and the GPA board. I have seen some people's photos that I can tell have poor solder connections. Usually they are good enough, but you never know.

Do you have a multimeter that you could use to test the connection? We could determine if there is a problem between the button and the Pi or if the button itself is bad.