My friend let me borrow his PSP so I could play Crisis Core. Just when I was done with the game the PSP went blank and no amount of turning it on and off would change the fact that the screen was just white. Weeks went by, and I avoided giving him back the system for fear that he would think I messed it up. Then one day right before I was going to give it back, I was joking with some friends that I could fix it by rubbing it against my crotch.

To answer your question: Yes, it did work after that.