Things You'll Need
Instructions
Download "Hellcats Recovery Flasher" and insert the PSP memory card into the computer's memory card adapter.
Right-click the "Recovery" folder, the file that came in the Hellcats download, and open the PSP memory card using the computer's file browser.
Open the "PSP" folder and right click the "Game" folder. Click the "Paste" option from the context menu that comes up.
Download the "500.pbp" firmware file and copy it into the "Recovery" folder that was moved into the "Game" folder.
Pull the PSP memory card out of the computer adapter, and insert it into the PSP. Hold the "Right" trigger button and turn the PSP on and enter the recovery menu.
Select the "Run program at /PSP/GAME/RECOVERY/EBOOT.PBP" option from the PSP recovery menu to start the Hellcats Recovery application.
Select the "Install M33 CFW" option at the top of the Hellcats menu. Press the "X" button to agree to the risks involved in the process. The PSP is unbricked without the use of a Pandora battery.