After upgrading, set up your new CFW environment:
This guide will walk you safely, step-by-step, from the vintage 3.52 M33 to the modern standard: (or 6.60 LME). We’ll cover everything from backing up your data to troubleshooting common errors.
Navigate to GAME → Memory Stick and ensure no auto-loading plugins (like CXMB or Game Categories) are active. To be safe, rename the /seplugins folder to /seplugins_old temporarily. psp 352 m33 upgrade to 660
To upgrade a Go to product viewer dialog for this item. from to the standard 6.60 (or modern custom firmware), you must take a multi-step approach. Because 3.52 M33 is an extremely old custom firmware (CFW), modern installers often won't recognize it or will throw errors like "9.90 version" or "DRN FF FF CD".
Enhanced capability to connect to older PSN services (where still available). After upgrading, set up your new CFW environment:
Some PSPs on very old M33 versions (below 4.01) have been known to brick when jumping directly to 6.60. To be hyper-safe, first update to 5.00 OFW.
Upgrading your PlayStation Portable (PSP) from the classic 3.52 M33 custom firmware (CFW) directly to the modern 6.60 official or custom firmware requires a specific multi-step path. You cannot jump directly to 6.60 due to architectural differences in the older M33 code, which will cause a system error or a brick. To be safe, rename the /seplugins folder to
Note: Ensure your battery is at least 78% charged and the charger is plugged in to avoid bricking during the process Step 2: Troubleshooting "DADADADA" or Version Errors
: Your PSP battery must be charged to at least 78%. Many updates will hard-block execution if the battery is low.
Use a reliable, formatted Pro Duo stick or a high-quality microSD adapter .
After upgrading, set up your new CFW environment:
This guide will walk you safely, step-by-step, from the vintage 3.52 M33 to the modern standard: (or 6.60 LME). We’ll cover everything from backing up your data to troubleshooting common errors.
Navigate to GAME → Memory Stick and ensure no auto-loading plugins (like CXMB or Game Categories) are active. To be safe, rename the /seplugins folder to /seplugins_old temporarily.
To upgrade a Go to product viewer dialog for this item. from to the standard 6.60 (or modern custom firmware), you must take a multi-step approach. Because 3.52 M33 is an extremely old custom firmware (CFW), modern installers often won't recognize it or will throw errors like "9.90 version" or "DRN FF FF CD".
Enhanced capability to connect to older PSN services (where still available).
Some PSPs on very old M33 versions (below 4.01) have been known to brick when jumping directly to 6.60. To be hyper-safe, first update to 5.00 OFW.
Upgrading your PlayStation Portable (PSP) from the classic 3.52 M33 custom firmware (CFW) directly to the modern 6.60 official or custom firmware requires a specific multi-step path. You cannot jump directly to 6.60 due to architectural differences in the older M33 code, which will cause a system error or a brick.
Note: Ensure your battery is at least 78% charged and the charger is plugged in to avoid bricking during the process Step 2: Troubleshooting "DADADADA" or Version Errors
: Your PSP battery must be charged to at least 78%. Many updates will hard-block execution if the battery is low.
Use a reliable, formatted Pro Duo stick or a high-quality microSD adapter .