Psp 352 M33 Upgrade To 660 |top| Jun 2026

Use an authentic Sony Memory Stick Pro Duo or a high-quality MicroSD-to-MS-Pro-Duo adapter.

Running Official Firmware means you lose access to your homebrew. To finish the upgrade process, install a modern, stable custom firmware like or 6.60 ME .

I can provide troubleshooting steps to help you safely complete the update path. AI responses may include mistakes. Learn more Share public link psp 352 m33 upgrade to 660

If you prefer the newest version, you can follow the same steps above but use the 6.61 Official Firmware and corresponding 6.61 CFW.

With your system stabilized on 3.52 M33-4, you can now transition out of the 3.xx firmware generation. Step-by-Step Installation Download the homebrew pack. Download the Official Sony 5.00 Firmware (PBP) file. Connect your PSP to your computer via USB. Use an authentic Sony Memory Stick Pro Duo

Follow the on-screen instructions (usually pressing X to test, then X to install). Troubleshooting

Disconnect the USB, go to , and run the PSP Update ver 6.60 . I can provide troubleshooting steps to help you

However, the PSP scene has evolved significantly. Staying on 3.52 M33 today limits your ability to play games released after 2007, prevents you from using the PSN Store (historically speaking), and blocks access to modern homebrew engines like the popular gPSP Kai (GBA emulator).

On your PSP, navigate to Settings > USB Connection and ensure it's set to USB Mode .

Post-upgrade, verify:

Disconnect from the PC. On your PSP, go to Game > Memory Stick and run the .