Psp - 352 M33 Upgrade To 660 Portable

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Because 3.52 M33 is a very old "Open Edition" firmware, you cannot directly jump to 6.60 without risks. We must take a "stepping stone" approach to ensure the system doesn't brick. Phase 1: Upgrading to a "Bridge" Firmware (5.00 M33-6)

Modern custom firmware is more stable on older hardware. psp 352 m33 upgrade to 660 portable

You will need:

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 This public link is valid for 7 days

Now that you are on 6.60 Official, we will install 6.60 PRO-C2. Download (or 6.61, as it is nearly identical).

Follow the instructions to flash the IPL, making the custom firmware stick after a full power-off. Step 4: Installing PSP "Portable" Tools (Plugins) Can’t copy the link right now

Before you begin the upgrade process, make sure you have the following:

Suggested plugin/utility list

Many newer ISOs and eboots require higher firmware versions to run without patching.