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How to Downgrade PSP Version Software

The Sony Playstation Portable is portable video game console released in 2005. It plays games through a universal media disk (UMD) drive on the rear of the device, and uses Sony firmware as its operating system. Sony frequently updates its PSP firmware to include and exclude certain features and securities. Once you upgrade your PSP's firmware, there is only one way to downgrade the firmware back to the original, and that is with a Pandora battery.

Things You'll Need

Magic memory stick
Pandora battery

Instructions

- 1
  Turn off your Sony PSP and remove the battery from the rear battery compartment. Remove the memory stick from the PSP memory stick slot.
- 2
  Insert the Magic memory stick into the PSP memory stick slot with the device still powered off. Insert the Pandora battery into the battery compartment and the PSP will turn on by itself.
- 3
  Press the "X" button two times to begin the firmware downgrading process. This will take a few minutes to complete. You will see the percentage of the completion on the screen. When it reads "100 percent," press the "X" button again to shut off the PSP.
- 4
  Remove the Magic memory stick and Pandora battery. You are finished with these. Reinsert the normal battery and memory stick that you removed in Step 1. Turn the PSP on and your PSP will be running the downgraded firmware.

Sony PSP