Home >> Internet Games >> Sony PSP

How to Downgrade Your PSP System Software

The Sony PSP was introduced in 2005 and came prepackaged with what many people believe to be the golden firmware of the PSP, 1.50. The Sony PSP 1.50 firmware had many different bugs in it that made things like playing ISO files of a Memory Stick possible. These ISO files are actually exact backups of your PSP games. Of course, Sony released new firmware to plug these holes, but luckily you can downgrade your PSP to make use of them.

Things You'll Need

Pandora battery
Magic Memory Stick

Instructions

- 1
  Turn off your PSP. Remove the battery from the battery bay on the rear of the PSP and remove the Memory Stick from the slot on the side of the PSP.
- 2
  Insert your Magic Memory Stick into the PSP. Then insert your Pandora battery, and your PSP will turn on all by itself.
- 3
  Read the text that appears on the PSP screen, and you will see an option for downgrading the firmware of the PSP. Press "X" to downgrade your PSP software.
- 4
  Press the "X" button again to shut down the PSP when the downgrade is complete. Remove your Pandora battery and Magic Memory Stick. Insert your normal ones. Boot up the PSP and you will be running the original PSP firmware, 1.50.

Sony PSP