Question about repairing a controller with stick drift
I have come in search for some answers with stick drift. I’m new so I’m trying to learn how to do some repairs on tech. I was looking at this board and I had noticed some black on it. To me that would make me thing something was either burnt or worn out but can someone tell me what could have caused this and would this be why its drifting the black I'm referring to is near the bottom stick
Questa è una buona domanda?