To write a game or application for the PSP, you need the SDK (software development kit) from Sony.
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.
if you mean croc for ps1 then yes ! what you need to do is get custom firnware(look it up in youtube!)then you download the game (look for psx game it should be their)psx games are ps1 games but on format for a psp with custom firmware(don't wory the game wont be different from the original......once you download the game you should have a (((keys,and a eboot)))))file , you put that in the game folder in your psp's memmory stick....then your done enjoy!!!!:)
You cannot UN-HACK a psp.
No. If you have psp 3000 it will but any other psp it will work.
you have to have custom firmware and use the umd usb connection then add it in the map foldersYou can also do it this way... You need the latest PSP firmware 5.51 here www.us.playstation.com/PSP/Downloads/systemupdate and go to the playstation store on your PSP.No Iddiot youadd-ons are official while Custom Firmware is not you put it in ms0:\psp\game Directory
custom firm ware is a modification of the psp that lets you use cheats,put ps1 games in the psp ,and much more. you can get custom firmware by makeng a Pandora battery and a magic memmory stick.(for psp 2000,and older)......for psp 3000 you have to get hue or somthing like that .
Do u have Custom Firmware? if you do, drag it to Game folder. If not, i dont think you can
first does your PSP already have custom firmware? If it does I have no Idea what is wrong but if it doesn't then you need a Pandora battery and a Magic Memory Stick
The thing that powers the PSP. It also enables you put put Custom FirmWare on the PSP
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.
get a custom firmware ya hackeer
you can get alot of games for psp from gamestop or download custom firmwire