Psp 352 M33 Upgrade To 660 Portable Jun 2026

Now that your PSP is running a relatively modern 5.xx baseline, it can safely parse and execute official Sony update files without throwing error codes (such as the infamous 0x80020148 or version spoofing errors).

Find the official Sony 6.60 EBOOT.PBP from reputable archives like ConsoleMods . Transfer Files: Connect your PSP to your PC via USB. Navigate to the PSP folder, then the GAME folder. Create a new folder named UPDATE (all caps). Place the EBOOT.PBP inside: ms0:/PSP/GAME/UPDATE/EBOOT.PBP . Run the Update: psp 352 m33 upgrade to 660 portable

Step 2: Breaking the Firmware Barrier (Updating to 5.00 M33 or 5.50 GEN) Now that your PSP is running a relatively modern 5

Disconnect the USB, navigate to the menu on your PSP, and run the M33 update. Navigate to the PSP folder, then the GAME folder

Now that your update is complete, you can optimize your memory stick architecture for modern portable use:

We will use Hellcat’s Recovery Flasher. This tool is famous for rescuing bricked PSPs, but it is also perfect for upgrading legacy M33 firmware without blowing fuses.