i was wondering if the pandora battery hack only unbricks the psp or downgrades it as well. my system software version is 3.03.. also, if i want todowngrade do i need the unpatched gta liberty city story's game?
it will reflash and unbrick your firmware with the 1.5 firmware.
most links on google, inc this one will tell you how to do it.
its only useful if your psp is fully bricked though, or is just on a crappy firmware