I've got a friend's psp slim that won't charge via adaptor. It charges fine via usb, so I shouldn't be the battery, right? I was thinking something may have come unsoldered or something is loose. I used to own it myself and it would charge for me fine, so I don't know if he's doing something wrong or if something happened to it. He's using an off-brand charger, so could that have anything to do with it?
Any feedback is welcome! Thanks!!!