Hey my son has the older PSP unit and is experiencing analog stick trouble so I replaced the analog stick and installed it only to find out that the same problem exists. The problem is that the pointer wanders and as I try to control it doesn't respond. The pointer either goes down or goes up. I tried to tighten or losen the screws on the stick and face plate but it didnt work. I cleaned off the rubber pad between the contacts but that didnt work either. It's clear that the rubber contacts arent working. Is there a way to replace the rubber contact with a new one?