We must return the console to a blank slate before installing modern custom firmware.
Furthermore, 3.52 M33 often runs in a hybrid 1.50 kernel mode. Jumping directly to 6.60 breaks the "landing zone" for the flash0 files. Therefore, we must use a : Go to 5.00 M33-6, then to 6.60 PRO. psp 352 m33 upgrade to 660
Even with perfect execution, issues can arise. Here’s how to fix them. We must return the console to a blank
: Ensure your PSP is charged to at least 78% . If the power cuts during a firmware write, you may "brick" (permanently break) the console. Therefore, we must use a : Go to 5
Running Official Firmware means you lose access to your homebrew. To finish the upgrade process, install a modern, stable custom firmware like or 6.60 ME .
The Bridge Between Eras: Upgrading the PSP from 3.52 M33 to 6.60