Psp 352 - M33 Upgrade To 660

Upgrading from to 6.60 PRO-C2 or 6.60 ME-2.3 is highly recommended for any PSP user seeking modern game compatibility, improved plugin support, and performance enhancements. The process is low-risk if official NAND backups are made and power stability is ensured. Users with PSP-3000 or later should avoid permanent patches and rely on FastRecovery. The 6.60 CFW ecosystem represents the most stable and feature-complete endpoint for PSP homebrew, superseding the M33 lineage entirely.

Download the file for the PSP. Connect your PSP to your PC. psp 352 m33 upgrade to 660

Solution: Enter Recovery Menu (hold R trigger at boot) > > Toggle USB (flash0) to reset USB configuration. Upgrading from to 6

Extract the update files. Copy the folder named M33Update4 directly into the PSP/GAME/ directory. Solution: Enter Recovery Menu (hold R trigger at

Before modifying internal flash storage, collect the necessary gear: How To Update Your PSP TO 6.61 Official Firmware

Modern tools allow for safe, easily toggled, or completely permanent custom firmware installations on all PSP models. Pre-Requisites and Hardware Check