I hooked a thumbstick up to a snes controller I found today, and after a long time I finally had it all soldered in place, but the I remembered that this controller was broken. the controller is completly non responsive when plugged into my snes and I have tried using cords from another controller which I know works, but my controller is still non responsive.
I may have fried it when putting on the thumbstick, but please post other suggestions because it didn't work even before the thumbstick.