I got this used Xbox 360 controller a while back, the A, B and R3 buttons didn't work, so I tried cleaning the circuit board and membranes and also trying a membrane from a working controller, but that didn't help. There doesn't seem to be any visible damage on the circuit board either, and since I'm not very knowledgeable with electronics I simply stored it away. Today I opened the controller again to try a couple thumbsticks that I bought recently, and since the controller was already open I once again tried to check what's wrong with it, so I plugged it to the PC and used a multimeter to check for continuity. While doing this I found out that whenever I touched the button with the multimeter it would register as a button press on the PC. After that I put the controller back together and to my surprise every button started working again, but after a while the A, B and R3 stopped working again.
Does anyone have an idea of what the problem with this controller might be?
Does anyone have an idea of what the problem with this controller might be?
