Possible Unbrick Solution! *DONT GET YOUR HOPES UP*
IMPORTANT READ!
my psp is bricked. one of the reasons that u cannot unbrick a psp, is that you cant acsess the usb to install anything on it, but i think i found a way. when you turn my psp on, the backlight comes on, but the screen is blank, then it cuts off after about 20 seconds. but i noticed that my memory stick is being acsessed because the light is blinking. there are things that hook up to your computer that you can put your memory stick/ sd / compact flash into. i have one. so if you can put a file on the memory stick from that, that will run a program or install something when acsessed, u can maybe unbrick your psp!
I MADE THIS POST A LOOONNNGGG TIME AGO WHEN I WAS A N00B!