I dont have 2 PSP's to do pandoras battery with so im trying a new way. What would happen if i download the update 3.80 but dont install it. Intsead i put in the usb and go to the update folder. From there i would drag out the update 3.8 and replace it with update 1.50. I know it probably sounds crazy but does anyone think it would work? And if not would update 3.50 work so i could downgrade it from there?