I got a W580i from a friend that does not work anymore. He customized it but screwed it up.

When I turn it on, it vibrates for 1/3 of a second, a customized initial screen appears and then it turns off. I can charge it, and connect it to the PC, and even messed with setool2, but don't know how to fix this problem.

-Can anyone help me out?

-What can possibly be the problem?