I'm in need of some serious help. I accidentally deleted everything in the flash0 of my 3.40-oe psp. I forgot to back up the 3.40oe flash0 files from my psp, so i tried to use my brother's flash0 files from his 3.40oe psp. now when i try to turn my psp on, all i get is a black screen. I can still access the recovery menu though. Can anyone please help me? i would greatly appreciate it.