From Mexico.purplecow.org
- PS2 mode
- insert game disk
- press EJECT to close tray
- preset RESET once.
- PS1 mode
- insert game disk
- press EJECT to close tray
- press and hold RESET until PS2 powers off to standby
- press and hold RESET to turn on machine and hold for 2 seconds then release
- DVD regionfree mode
- insert DVD
- press EJECT to close tray
- hold RESET until PS2 powers off to standby
- press and hold RESET to turn on machine and hold for 4 seconds then release