Make or buy a pandoras battery
New version comes out is the best version but i should be custom firmware because without custom firmware you can not play free games in PSP.
Recently you can not make your psp with a custom firmware with out Pandora, Think about buying a Pandora battery on eBay, they are cheap.
You just need to upgrade your firmware, then you can access the PSN to purchase and download games.
No.
you cant
Firmware refers to the system software of a hardware device. Custom firmware takes the place of normal firmware, often adding functionality aspects to the system.
Right now there isn't. If you want to get custom firmware for psp version 6.20 you need to downgrade to custom firmware using a Pandora battery.
Not sure. Why not downgrade?
Die
I'm not sure what you mean by "the mod" but I think you may be referring to a "custom firmware". If so, you can safely format your PSP's memory stick without removing the custom firmware. This is because the custom firmware is stored in the internal PSP flash memory, not on your memory stick. If you want to remove the custom firmware, you will need to just install an official firmware onto the psp. The easiest way to do this is to put in a PSP game that comes with a firmware upgrade and choose that option. Then I would recommend having the psp do a Network Update.
Custom Firmware is illegal<-----EDIT:Thats not what he was asking, please asnwer the question
Custom firmware is needed to do it, and if custom firmware is installed on the PSP in use, a plugin can be installed.