I have two controllers where the left directional Button has stopped working. I order a new conductive sticker not sure if this will fix it though. Any ideas what I should check?
Every button on the board has a test point, so you could identify the matching TP to verify if the line is working. You could also peel back the conductive metal popper any try to stimulate a press with some tweezers if you want a quick and dirty test.
Thanks for the info, I will give that a try!