i got a slim psp with 5.00m33 which i let my friend borrow which he somehow managed to mess up at tht time i had and earlier custom firmware then i upgraded to 5.00 but the problem was still there. The problem is tht the screen keeps swtiching off randomly and the mute sound option is on after u restart the psp if u put the volume on again after a few mintues the screen goes blank but the psp still works, also when u try to type something for example change nickname or type in web site it doesnt let u do it i really need help
If you are this stupid, you don't deserve a hacked PSP. NEVER FLASH SOMEONE ELSES NAND TO YOUR PSP. It will make it never turn on again, unless you are fully prepared.