i think it is the charging port that might be broken then, first try look inside of it to see if it is not like it should be, if everything looks fine then you could try to make a factory reset... i know it might not be the first thing you might want to do, but i had a PC VITA (1000) that got stolen, but it had the same problem, and a factory reset helped on the problem, but id it still wont work then there is only one thing to do, and that is to change the charging port/ motherboard :( .. i hope some of this will help you =/"^..^=/"