How to Downgrade a PSP

Step-by-Step Guide

1. 1

   Step 1: Determine which version of the PSP operating system you are currently running: Navigate to the main menu on your PSP.

   Select Settings
   -> System Settings
   -> System Information.
   
   Look for System Software Version X.XX.
   
   Where X.XX is the version number of your PSP firmware.
   
   Now you will know which downloader and/or updater you will need.
   
   Note that any version greater than
   1.51 will prevent you from running Homebrew and other independent applications.

Detailed Guide

About the Author