Psp 352 - M33 Upgrade To 660 Portable 'link'

How I Upgraded a PSP 352 M33 to a 6.60 PRO or Rebirth-Style Portable: A Step‑by‑Step Guide and Notes

If you own a PSP 1000/2000/3000 with a custom firmware (CFW) like the M33 series and want a modern, portable-feeling experience by moving up to a 6.60-based release (6.60 PRO/PRO-C or similar), this post walks through the motivation, what to expect, and a practical, low-risk path. This is written for hobbyists who want a cleaner, more compatible firmware experience while keeping their PSP fully functional for games, homebrew, and media.

1. Game Compatibility: Games released after 2007/2008 require higher firmware versions. Running them on 3.52 M33 requires patching ISOs or using specialized loaders. On 6.60, almost every game runs natively without patches.
2. PS1 (POPS) Support: On 3.52 M33, playing PS1 games often required "Popsloader" to swap between different emulator versions. On 6.60, the PS1 emulator is significantly more advanced and plays most games natively.
3. Plugin Architecture: Modern plugins (for texture replacement, widescreen patches, or screenshot tools) are designed for the 6.xx kernel. They will not work on 3.52 M33.
4. No Need for Popsloader: The "Pops" (PS1) support in 6.60 is robust enough that you rarely need to load older versions.

Since your device is already running M33, it is a "fully hackable" model. The ME (Minimum Edition) firmware is the best choice for permanent installation. Download the 6.60 ME-2.3 (or 6.61) installer. Place the UPDATE folder into ms0:/PSP/GAME/. Launch the installer from the Game menu. Follow the on-screen prompts to flash the firmware. The PSP will reboot into a permanent 6.60 ME state. ✨ Benefits of the Upgrade psp 352 m33 upgrade to 660 portable

Recommended build (practical)

to "flash" the PSP back to an official firmware like 5.00 or 6.20 first. www.reddit.com Phase 3: Installing Official Firmware 6.60 PSP: Updating from the 3.xx OE CFWs to the 6.60 ME CFW How I Upgraded a PSP 352 M33 to a 6

If you’re on 3.52 M33 specifically

• 3.52 M33 already runs homebrew and has a recovery menu. Jumping to 6.60 usually involves running the 6.60 installer as a homebrew app. You don’t need to downgrade or intermediate-step unless the package demands it. Maintain your plugin configuration files and re-enable them in the new recovery menu.

Step 5: Make It Permanent (Optional – Depends on PSP Model)

• For PSP-1000 and PSP-2000 (non-v3):
  Run the CIPL Flasher from the PRO-C package. This will make CFW load automatically on every boot.
• For PSP-2000 (v3) and PSP-3000 (all):
  Do NOT use CIPL. Instead, use the Fast Recovery tool every time your PSP fully powers off. You can also install Infinity 2.0 for permanent CFW, but that requires additional steps.

A Charged Battery: Your PSP must have at least 78% charge. If it dies during a firmware flash, you will brick the console. Since your device is already running M33, it