Psp 352 M33 Upgrade To 660 -

Download the file from a reliable source like the Official PlayStation Manuals or WikiHow Guide .

There are two main custom firmware families for 6.60:

Follow the on-screen prompts (pressing X to initiate the flash). Once finished, press X to reboot. psp 352 m33 upgrade to 660

Updating from such an old custom firmware directly to 6.60 can occasionally trigger compatibility errors. Before starting, ensure the following:

Connect your PSP to the PC one final time. You will notice a folder named ISO directly at the root level of your memory stick (outside the PSP folder). This is where you can back up your digital ISO and CSO game files. Download the file from a reliable source like

(Optional) If you have a PSP 1000 or early 2000, run the to make the firmware permanent. For newer models, use FastRecovery if the console restarts.

Here’s a complete, step-by-step guide to upgrade your PlayStation Portable (PSP) with directly to 6.60 PRO-C2 (or 6.61 PRO-C2), including all necessary files and precautions. Updating from such an old custom firmware directly to 6

Finally, you will install the modern custom firmware to reclaim and enhance your PSP's capabilities. Choose your preferred CFW:

Connect your PSP to your PC via USB cable and navigate to Settings > USB Connection .

Note: Ensure your battery is at least 78% charged and the charger is plugged in to avoid bricking during the process Step 2: Troubleshooting "DADADADA" or Version Errors