I recently took the buttons off to replace the decal on the front of the pay station since I'm installing CryptoPay. After putting the buttons back in, I turned power on, but they no longer register. I've confirmed the reading 3.8V when they're pushed, so it doesn't appear to be a power issue. I even replaced the circuit board on the back of the door with no change. Unitec stated they believe its the small cable harness going from the buttons to the board, but with all 4 buttons not registering it seems something else is the issue.