You need to use the program listed to format the memory stick and battery + a psp v1.5 (this is where it is copying the firmware from) or the like so it becomes a "jigakick" or the factory defaulter battery+memory stick combo. Basically you would lose that battery and memory stick as a factory defaulter and it would be stuck that way. But the plus side is that all you need to downgrade any psp in the future (the battery + memory stick).