Upgrading a to the final 6.60 firmware is a multi-step process because older Custom Firmware (CFW) versions like 3.52 M33 often block official Sony updates to prevent accidental loss of homebrew capabilities. 1. Preparation and Safety Charge your battery
PSP -> GAME folder on your Memory Stick.UPDATE (all caps).EBOOT.PBP (6.60 firmware) inside the UPDATE folder.X:/PSP/GAME/UPDATE/EBOOT.PBP660_PRO-C2 folder → copy to X:\PSP\GAME\CIPL_Flasher folder → copy to X:\PSP\GAME\ (if you have PSP-1000 or 2000 non-v3)Before touching your PSP, gather these items. Do not skip this section. psp 352 m33 upgrade to 660
Your PSP will go from a dusty museum piece to the ultimate retro emulation machine and PS1/PSP powerhouse. Fire up your old save files, download the latest homebrew, and enjoy the best firmware the scene ever produced. Upgrading a to the final 6
PSN Access: Better stability when connecting to the PlayStation Network (though services are limited today). Connect PSP to PC