Purchased a 2nd hand psvita 1001 from a pawn shop for a benjamin. Had a bad right analog so i ordered a replacement taken off a broken vita 1000. Soon as I replaced it. It started acting up! First power and the home button no longer worked. So i lived with having to hold power for 10 seconds to go to safe mode and restarting the system to switch apps. now when I start a game the buttons do not work at all! Some are saying bad sister boards, or bad shoulder or power buttons. but I need some more solid facts here. So I turn to you, the hackers and modders who know the inner workings of the vita better than I for a actual solution. And by the way i foolishly updated it to 3.60, I know that was stupid but i wanted to snag persona 4 golden for cheap. So can any of you offer some helpful clues and/or advice to fixing this problem?