Psp 352 M33 Upgrade To 660 Portable -

Once you have flashed the system to 6.60 (official or temporary custom firmware), you need to install the permanent custom firmware.

For 6.60 PRO-C2:

For 6.60 ME (Minimum Edition):


Upgrading from the legacy custom firmware to the final (Official or Custom) version is a standard process, though it requires care due to the age of your current software. Recommended Upgrade Path The safest and most common method is to first revert to Official Firmware (OFW) before re-installing modern Custom Firmware (CFW) like 6.60 PRO-C

Upgrading Your PSP from 3.52 M33 to 6.60: A Complete Modern Guide

If you have a PlayStation Portable (PSP) still running the legendary 3.52 M33 custom firmware, you are holding a piece of handheld history. Released by Team M33 nearly two decades ago, it was the gold standard for its time. However, to play modern homebrew, enjoy better PS1 compatibility, or use the latest plugins, upgrading to Official Firmware (OFW) 6.60 (and subsequently a modern custom firmware like PRO or ME) is essential.

Updating from such an old version requires specific steps to avoid common "version spoofing" errors or "DADADADADA" update failures. 1. Preparation: The Hardware Checklist

Before touching any software, ensure you have the following:

A Charged Battery: Your PSP must have at least 78% charge. If it dies during a firmware flash, you will brick the console. psp 352 m33 upgrade to 660 portable

AC Adapter: Keep the PSP plugged into a wall outlet throughout the process.

Memory Stick: A Pro Duo stick or a MicroSD to Pro Duo adapter with at least 64MB of free space. Mini-USB Cable: To transfer files from your PC. 2. Step 1: Cleaning Up 3.52 M33

Old M33 firmwares sometimes had "version.txt" files that tricked the PSP into thinking it was on version 9.90, which blocks official updates.

Check for Spoofing: Completely shut down your PSP (hold power for 3 seconds). Hold the R-Trigger and turn it back on to enter the Recovery Menu.

Configuration: Go to Configuration and ensure "Use version.txt" is set to Disabled. Exit: Select Back and then Exit. 3. Step 2: Updating to Official Firmware 6.60

You cannot jump directly to modern custom firmware from 3.52 M33; you must first return to official Sony software.

Download OFW 6.60: Find the official Sony 6.60 EBOOT.PBP from reputable archives like ConsoleMods. Transfer Files: Connect your PSP to your PC via USB. Navigate to the PSP folder, then the GAME folder. Create a new folder named UPDATE (all caps). Place the EBOOT.PBP inside: ms0:/PSP/GAME/UPDATE/EBOOT.PBP. Run the Update:

Disconnect from the PC. On your PSP XMB, go to Game > Memory Stick. Launch the PSP™ Update ver 6.60. Once you have flashed the system to 6

Follow the prompts to install. Once finished, your PSP will reboot into official version 6.60. 4. Step 3: Installing Modern Custom Firmware (PRO-C or ME)

Now that you are on 6.60, you can install a modern, "portable" (temporary) or permanent CFW. PRO-C2 is highly recommended for its compatibility. How To Update Your PSP TO 6.61 Official Firmware

Upgrading a PSP from the ancient 3.52 M33 custom firmware (CFW) to modern 6.60 PRO or ME is a common task for users rediscovering their handheld consoles. While 3.52 M33 was a landmark version in the mid-2000s, it lacks support for later games, advanced plugins, and modern homebrew. Preparation: Before You Begin

Updating from such an old version requires careful steps to avoid "bricking" (permanently disabling) your device. How To Upgrade to PSP 6.60 PRO-C2 Custom Firmware [2021]


Before we dive into the “how,” let’s discuss the “why.” 3.52 M33 is a 1.50 kernel-based firmware that relies on legacy loading methods. Here’s what you gain by moving to 6.60:


Now that you are on official firmware 6.60, you are no longer "hacked." You must install a modern Custom Firmware. 6.60 ME (Minimum Edition) is the standard choice for most users.

Q: Can I go from 3.52 M33 straight to 6.61? A: Yes, but 6.61 offers very few advantages over 6.60 and has worse plugin support. Stick with 6.60.

Q: Will my old 1.50 kernel homebrew still work? A: Some very old homebrew (2005-2006) may not run. However, modern alternatives exist for nearly everything. For legacy apps, use eLoader or LEDA plugin. Upgrading from the legacy custom firmware to the

Q: Is it safe to play online? A: Yes. PRO-C spoofs your version to appear as OFW. However, official PSP online services (Infrastructure) are mostly shut down. Use community servers like Pro Online or Xlink Kai for ad-hoc play over the internet.

Q: My PSP is a “T.A. 082” board with 3.52 M33 – any risk? A: No. TA-082 boards were problematic for downgrading, but upgrading is fine. The 6.60 official update includes full motherboard compatibility.


There are two main ways to do this. The safest method for such an old firmware is using an installer that runs under your current CFW.

Method A: Using Hellcat's Recovery Flasher (Recommended for 3.52)

Method B: The "PRO" Update Method (If compatible) Some modern PRO updaters can flash directly from older M33, but it is risky on 3.52 due to kernel differences. If you attempt this:

"I get a black screen after running PRO Update!"

"I want to go back to 3.52 M33!"

"My PSN games won't run."


If you are happy playing old ISOs from 2007, you don't need to upgrade. But here is what you are missing: