Go to Settings > System Settings > System Information . It should now read 6.60 PRO-C . Why Bother?
Upgrading from breathes new life into your PSP. You gain full game compatibility, modern homebrew support, and a stable, fast CFW environment. The process is straightforward, and as long as you follow the official firmware step, the risk is minimal. psp 352 m33 upgrade to 660 portable
: 6.60 provides the highest compatibility for plugins, Custom Themes (CTFs), and homebrew compared to any other firmware version. Go to Settings > System Settings > System Information
Potential downsides
: The 6.60 kernel includes official Sony system fixes that are not present in the 3.xx branch. Upgrade Path and Troubleshooting modern homebrew support
Summary