Psp 352 M33 Upgrade To 660 Portable Fixed -

Yes, 6.61 is identical in functionality to 6.60. The steps are the same, just use the 6.61 PRO-C2 files. Will this destroy my old 3.52 M33 games?

Now that you are on OFW 6.60, you can install modern custom firmware.

Because 3.52 M33 is so old, you cannot jump directly to 6.60. Doing so often results in a "DADADADA" error or a brick. psp 352 m33 upgrade to 660 portable

Are you planning to use it primarily for or retro emulation ?

Connect your PSP to your PC via USB. Backup any data you want to keep. Go to Settings > System Settings > Format Memory Stick . Verify Battery: Ensure your battery is charged. Yes, 6

If you have a PlayStation Portable (PSP) still running the legendary custom firmware, you are holding a piece of handheld history. Released by Team M33 nearly two decades ago, it was the gold standard for its time. However, to play modern homebrew, enjoy better PS1 compatibility, or use the latest plugins, upgrading to Official Firmware (OFW) 6.60 (and subsequently a modern custom firmware like PRO or ME) is essential.

| Problem | Solution | |---------|----------| | Update fails at 3.52 M33 | Make sure you’re running Sony’s official 6.60, not a custom version. Use a clean EBOOT. | | PRO-C installer freezes | Check that you have at least 10% battery or run with charger plugged in. | | Games don’t load | Go to VSH menu (Select) → ISO mode → change to Inferno or M33 driver. | | After shutdown, CFW is gone | That’s normal on 3000. Just run Fast Recovery. | Now that you are on OFW 6

: Most modern plugins (like overclocking or save-state tools) are built specifically for 6.60.

Run the FastRecovery app from the game menu.