Psp 352 M33 — Upgrade To 660 Link

Here’s a complete, step-by-step guide to upgrade your PlayStation Portable (PSP) with Custom Firmware 5.50 GEN-D3 / 5.50 Prometheus (or 5.00 M33-6) directly to 6.60 PRO-C2 (or 6.61 PRO-C2), including all necessary files and precautions.

Note: There is no such thing as "PSP 352 m33" – you likely mean 3.52 M33 (a very old custom firmware). The process below works from 3.52 M33 or higher (including 5.00 M33, 5.50 GEN, etc.) to 6.60 PRO-C.

Step 2: Installing Official 6.60

Because you are jumping from 3.52 to 6.60, you cannot flash the custom firmware directly over such an old version. You must update to official firmware first. psp 352 m33 upgrade to 660

1. Connect your PSP to your PC via USB.
2. Navigate to the PSP folder, then the GAME folder.
3. Create a folder named UPDATE (it must be capitalized).
4. Place the official 6.60 EBOOT.PBP inside the UPDATE folder.
5. Disconnect USB and go to Game > Memory Stick on your PSP XMB.
6. Run the update labeled "PSP Update ver 6.60".
7. Follow the on-screen prompts. The PSP will reboot into official, unhacked 6.60 firmware.

1. Identify Your PSP Model

• PSP-1000 (Fat) – Most compatible. Cannot be permanently bricked if you have a Pandora battery.
• PSP-2000 (Slim) – Check the motherboard. TA-088 v3 and higher require extra care.
• PSP-3000, PSP Go, Street (E-1000) – Motherboards cannot be fully bricked easily, but require different permanent patch methods.

Emergency Recovery (Bricked PSP)

• PSP-1000/2000 non-v3 – Pandora battery + Magic Memory Stick.
• PSP-3000/Go/E1000 – Use Chronoswitch Downgrader v7.0 from recovery menu (hold R on boot).

6. Common Failure Modes and Recovery

| Error Code | Cause | Solution | | :--- | :--- | :--- | | DADADADA | Version check fail in Sony updater | Ensure running M33 updater, not Sony OFW. | | DRNFFFFFFCD | NAND bad block in IDStorage | Requires Pandora + NAND tool (hardware solution). | | Infinite reboot after CIPL | Wrong motherboard revision | Hold Home on boot; uninstall CIPL; revert to 6.60 ME. |

The Upgrade Process

WARNING: Before starting, ensure your PSP battery is charged above 75%. A power failure during a firmware flash can "brick" (destroy) your console. Here’s a complete, step-by-step guide to upgrade your

Upgrading from M33 to 6.60

The process typically involves installing a custom firmware (CFW) that mimics or enhances the functionality of the 6.60 official firmware, which is one of the most versatile and homebrew-friendly versions.

5. Download the Required Files

You will need the following (download from reputable sources like the official PRO-C GitHub or PSP developer forums): Note: There is no such thing as "PSP

• Official Sony 6.60 Firmware Update (660.PBP)
• 6.60 PRO-C2 Updater (or 6.60 LME Installer)
• Chronoswitch Downgrader v7 (as a safety net for recovery)
• KeyCleaner v1.4 (to fix potential IDStorage corruption from old M33 versions)

Create a folder on your PC called PSP_660_Upgrade and place all these files inside.

3. Prerequisites & Risks