Custom Firmware 5.00 M33-3
The Installation requires a PSP with 3.52 M33-3 or higher [fat PSP], or 3.60 m33 or higher [Slim PSP]. If your PSP is the Offical Sony Firmwares or lower version
Category: PSP Firmware
Custom Firmware 4.01 M33-2
The installation requires a PSP with 3.52 M33-3 or higher [fat PSP], or 3.60 m33 or higher [Slim PSP]. If you PSP(fat or slim) is on Offical sony firmwares, you
Patapon M33 Driver problem
There are some games that will not work with your M33 driver. For example, Patapon will hang during loading the game. This can be resolved by choosing the Sony NP9660
Firmware 3.90 M33
The firmware for 3.90 M33 has been released for the PSP. You can install it if your PSP is using 3.52 M33-3 or higher version. You must have 2 item