Things You'll Need
Instructions
Remove the PSP's normal battery and memory stick, turning the PSP off in the process.
Insert the Magic Memory Stick into the PSP's memory stick slot. Insert the jigkick battery into the PSP's battery slot. The PSP will turn on automatically and be in service mode.
Press the "X" button to reinstall your PSP's software to the PSP using the MMS. The MMS comes with the necessary files to install to the PSP.
Press the "X" button again to shut down the PSP and reinsert the normal battery. Turn the PSP on and it will now be fully functional.