Psp 352 M33 Upgrade To 660 Portable Jun 2026
Copy the 5.00 M33 installer EBOOT.PBP into that UPDATE folder.
(Note: While we cannot host these files here, searching for "PSP 3.71 OFW" and "PSP 660 PRO-C2 download" on reputable homebrew sites will yield results).
On your PSP, navigate to and launch the PSP Update ver 6.60 .
: Your battery must be charged to at least 78% . Keep the official AC wall adapter plugged into your console throughout the duration of this process.
Disconnect the USB cable. On your PSP, go to -> Memory Stick and launch the 3.52 M33-4 update. psp 352 m33 upgrade to 660 portable
The Ultimate Guide to Upgrading Your PSP from 3.52 M33 to 6.60 Custom Firmware
Moving from 3.52 to 5.00 provides a stable base with a functional recovery menu. Download the updater. Place the updater in PSP/GAME/UPDATE on your Memory Stick. Run the update from the Game menu. Once completed, restart your PSP. Phase 2: Installing Official 6.60 Firmware
The PSP-1000 and PSP-2000 models running 3.52 M33 are currently on a "legacy" custom firmware (CFW). Upgrading to 6.60 (or 6.61) provides modern game compatibility, better plugin support, and access to the PlayStation Network (PSN) infrastructure. 🛠️ Prerequisites A PSP-1000 or PSP-2000 (Non-v3 motherboard). Battery: At least 78% charge (or plugged into AC power). Storage: A Memory Stick Pro Duo with at least 100MB free. Files: Official Firmware (OFW) 6.60 EBOOT.PBP . M33-4 Update (if currently below 3.52 M33-3). 6.60 ME-2.3 (Minimum Edition) or 6.60 PRO-C2 installers. 📈 Phase 1: The Bridge Update (3.52 M33-4)
Upgrading your PSP from the legendary custom firmware (CFW) to Copy the 5
After the reboot, go to . You should see:
Since your device is already running M33, it is a "fully hackable" model. The 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
Place the 5.00 EBOOT.PBP (renamed to 500.PBP ) into the PSP/GAME/UPDATE folder alongside the M33 installer.
You have two excellent choices. I recommend for its plugin compatibility and permanent patch option. : Your battery must be charged to at least 78%
If you get a "Version 9.90" error, go to the VSH Menu (press Select), change "USB Device" to "Flash 0," connect to a PC, open vsh/etc/version.txt , and change "9.90" to "3.52". 🚀 Phase 3: Installing 6.60 ME-2.3 (Permanent CFW)
If you have a 1000 or 2000 series PSP (non-TA-088v3), you can make the CFW permanent. Run the from the Memory Stick.
: A PSP-1000 or 2000 (most 3.52 M33 users are on these older models).
