how to fix psp lcd screen if it is showing blank black color screen ?

i have installed windows vista on my psp now when i start my psp it shows blank black colored screen now what i do guys please help

frollard4 years ago
did you back up your factory nand? if you backed up you can use the same image to flash back to the original firmware...or you bricked it - use a pandora battery (1000 or 2000) to unbrick it.