Instructions
Select the "Settings" (Suitcase) icon from your home screen. Scroll over and select "System Settings" (Keyhole).
Select "Restore Default Settings." Wait for your PSP to restart.
Enter the default parental control password "0000" when attempting to view or play "restricted" content or games.
Turn the parental controls feature off, if desired. To turn it off, select "Settings" from your home menu, select "Security Settings." Select "Parental Controls," and enter the code "0000." Select "Off" under the tab labeled "Parental Controls."