Things You'll Need
Instructions
Turn off the PSP and push its battery release button on the rear of the device. This will pop off the battery cover. Pull out the PSP's battery.
Insert the Magic memory stick into the PSP's memory stick card reader. Insert the service tool battery into the PSP's battery compartment in the same manner as the original PSP battery.
Turn the PSP on manually, if the PSP does not turn on automatically. Press the "X" button to begin the installation of the new PSP firmware.
Press the "X" button to turn the PSP off after it reads "100 percent." Reinsert the normal battery and turn the PSP on. It will boot into the PSP's main menu and you will be able to use your PSP again.