Instructions
Select "Settings" (toolbox icon) from the PSP menu.
Scroll down, and select "Parental Controls" (the lock icon). Press "X" to continue.
Enter a 4-digit code. Write down or memorize the code to avoid having to reset the device.
Select the level of encryption. The PSP allows the following levels of encryption to restrict content according to Entertainment Software Rating Board (ESRB) age-appropriate game ratings: Level 2 for "Early childhood," Level 3 for "Everyone," Level 4 for "Everyone ages 10 and up," Level 5 for "Teen," Level 9 for "Mature," and Level 10 for "Adult."