I've modded hundreds of consoles but never a PSP so far. I have a PSP that is at 3.72, a MS and one of the Datel Pandora batterys. So I don't need to convert the battery, my question is can I format the MS and prepare it on the PC and then downgrade it since I already have the battery or do I need a modded PSP still in order to make the MS with the files to downgrade?

I've seen a million tutorials and they all have something different and was just wondering if I can do this without another PSP since I already have the battery.

Thanks for any help.