Rationale: 5.00 M33-6 includes the version.txt spoofing required to bypass Sony’s 6.xx battery check.
Steps:
Yes, but 3.52 saves are generally fine. If you get "Corrupted Data," use MagicSave or FreeCheat to resign the save files to 6.60 standards.
Introduction: Why Leave the Legendary 3.52 M33 Behind? psp 352 m33 upgrade to 660
For many PSP enthusiasts, custom firmware 3.52 M33 (released by the legendary Team M33 back in 2007) represents the golden age of PSP hacking. It was stable, efficient, and opened the doors to homebrew, ISO loading, and plugins. However, time marches on. The PSP’s official firmware evolved significantly from 3.52 to 6.60, adding features like PlayStation Network integration, improved video playback, better security patches, and—most importantly—compatibility with modern homebrew and plugins.
If you are still running 3.52 M33, you are likely facing frustrating limitations:
This guide will walk you safely, step-by-step, from the vintage 3.52 M33 to the modern standard: 6.60 PRO-C2 (or 6.60 LME). We’ll cover everything from backing up your data to troubleshooting common errors. Rationale: 5
After upgrade:
| Problem | Solution |
|---------|----------|
| Update 6.60 won’t start | Make sure 660.PBP is renamed exactly EBOOT.PBP inside PSP/GAME/UPDATE/. |
| Error 0x80020148 | Disable all plugins before updating (hold R-trigger on boot → Plugins → Disable). |
| Update freezes at 99% | Battery low? Corrupt memory stick? Format MS and retry. |
| “Game could not be started” | Your 3.52 M33 kernel mode might be too old. Use Hellcat’s Recovery Flasher to go to 5.00 M33-6 first, then repeat steps. |
Some very old saves from 3.52 M33 may show as “Corrupted Data” on 6.60. Use MagicSave or Savegame Deemer to re-decrypt and re-encrypt them for 6.60. Introduction: Why Leave the Legendary 3
Introduction: Why Upgrade?
If you are still running Custom Firmware (CFW) 3.52 M33 on your PlayStation Portable (PSP), you are sitting on a relic of hacking history. Released back in 2007 by the legendary team M33, this firmware was revolutionary for its time. However, in the modern era, sticking with 3.52 M33 is like using a flip phone in the age of smartphones.
Upgrading to 6.60 PRO-C (or the more recent 6.61 Infinity) opens up a world of compatibility, stability, and features. Here is why you need to make the jump:
Warning: Read before proceeding. Upgrading from such an old firmware is not as simple as dragging a file to your memory stick. If you skip steps, you will encounter the dreaded "The system configuration of this PSP system does not appear to be correct" (Error DRNFFFFFFCD) or a straight-up brick.
| Item | Specification | |------|----------------| | PSP Model | 1000, 2000 (non-TA-088v3), 3000, Go, E1000 (Street) | | Battery | ≥75% charge | | Memory Stick | ≥256 MB (512 MB+ recommended) | | USB Cable | Mini-USB (for PC transfer) |