On you psp there is a switch at the top near the USB that says WLAN. Switch it on(the way the arrow is pointing) and its donefirst turn your psp on. Then go to settings and choose Internet options....
it has to be the battery Or if you have a psp 1001 then just break a certain part on the battery i would post a pic but i can tell u just break the silver thin piece of steel that connects the green...
. we need more information. if the light flashes for a split second then your mother board is fried, that's what mine does. If the light turns on but the screen does nothing: its bricked. Google...