Things You'll Need
Instructions
Insert the Magic memory stick into the PSP's memory stick reader.
Insert the jigkick battery into the PSP's battery bay, and turn on the device. A menu will appear.
Press the "X" button to reinstall the Sony PSP software. Press the "X" button again to shutdown the PSP when the install completes.
Replace the regular battery and memory stick in the PSP, and turn it on. Connect the device to the charger, and perform the update again.