Before installing modern CFW, you must move from your current legacy CFW back to the official 6.60 base.
Because 3.52 M33 tricks the system into thinking it cannot be updated, attempting a straight 6.60 installation will usually trigger an error like DADADADA . To bypass this, you need to use a downgrauber/restorer tool or clean the keys. the official Sony 6.60 OFW EBOOT.PBP . psp 352 m33 upgrade to 660
Older M33 firmwares include a built-in block created by the legendary developer Dark_Alex to prevent users from accidentally overwriting their custom firmware with official Sony software. To successfully transition your console, follow this step-by-step pathway. ⚠️ Prerequisite Checklist Before installing modern CFW, you must move from