Psp 352 M33 Upgrade To 660 Jun 2026

Your PSP must be charged to at least 78% . Connecting to a power source during the update is highly recommended to prevent a "power-off brick".

: Confirm your current version in Settings > System Settings > System Information . 2. Resolving the "Version 9.90" Error psp 352 m33 upgrade to 660

Hold the while powering on to enter the Recovery Menu . Your PSP must be charged to at least 78%

: 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 psp 352 m33 upgrade to 660