The PSP will guide you through the update process. Ensure you do not interrupt the process. Once the update is complete, your PSP will restart.
Older custom firmwares sometimes conflict with modern updates. We need to clean up the system before installing the official firmware. psp 352 m33 upgrade to 660
: If you encounter errors, use Key Cleaner by Chili Willy to repair "bad keys" that often conflict with older custom firmwares. Step 2: Installing Official Firmware (OFW) 6.60 The PSP will guide you through the update process
: Older M33 firmwares cannot run newer PSP games or backups without tedious patching. Step 2: Installing Official Firmware (OFW) 6
: Use the CIPL Flasher (included in most PRO-C downloads) to make the CFW permanent. Run it from the Game menu and follow the prompts. Go to product viewer dialog for this item. Go to product viewer dialog for this item.