im new my question is this. im about to mod a brand new darth vader psp 2001. im currently on ofw 3.71. should i upgrade the ofw up to date before i install the cfw? does it matter? my other question is this, after installing cfw whith a pandora battery, can i go back to my old battery or do i need to use the pandora battery. i know its stupid but i havent seen any threads on it.