PSP Help

First im sorry, i didnt know werelse to put this. Sorry. Anyways my PSP's Screen goes black when i hit the home button. Can anyone help me fix this problem. Ive already tried downgrading. Oh and i downgraded to 3.90M33-3 and updated back to 4.01M33-2. Can anyone help? Im a noob to this site and didnt see the Help Section Sorry. :/

Noob u scrolled past it now someone close this

hmm, u put water in your buttons or something, because johnnymckinney had a video that when he press his home button it goes into sleep mode and when he press volume down it goes all teh way down.