I have a pandora battery that i created in my Phat PSP, i want to downgrade my friends psp who has a "Slim" PSP. My question is, Can i downgrade a "Slim" psp using a "Phat" psp pandoras battery?
yes. you will have to hold the battery, since it does not snap in like the slim battery. also, you will need the correct magic memory stick. if it has 3.71 m33 or higher, then it will work.