How to Downgrade the Official PSP Firmware

The Sony PlayStation Portable (PSP) is a hand-held video game device that was released in 2005. The PSP uses Sony firmware to run the device, but the firmware can be downgraded in order to use special features that were removed from the original firmware. These features include playing full games from the PSP's memory stick. Downgrading the PSP's official firmware can be done using a special service tool battery and memory stick.

• 1

  Remove the PSP's battery and memory stick from the device's battery bay and memory card reader.

• 2

  Insert the Magic memory stick into the powered-off PSP and insert the Pandora battery. The PSP will turn on automatically.

• 3

  Press the "X" button two times to begin the downgrading process. The PSP's screen will flicker while the downgrade is taking place.

• 4

  Press the "X" button one more time to shutdown the PSP when the process reads "100%." Remove the Pandora battery and Magic memory stick from the PSP.

• 5

  Reinsert the normal PSP battery and memory stick into the device. Turn the PSP back on and it will be downgraded.