Yes... Boot up with 'START+SELECT+A+B' keys held down.
This will also boot to blank screen, but keep pressing 'A' till flashme starts again.
note.. make sure the flashme file is the only file on you're memory card, this way it will always be selected when pressing 'A' (blind browsing).. since there will be nothing visible on screen untill flashme starts again.
edit.. take out the passcard also when attempting to boot flashme's fail safe mode.