Hello, i have the solution
Run the Wiikey config disk 1.4 PAL
disable the "block update" (OFF)
and disable the "DEV mode" (OFF)
Enable all others parameters (ON)
Save this new parameters, reset your Wii, insert the Freeloader, after the 2 "waves",
eject the freeloader and insert the original Super smash bross brawl DVD.
With this methode no wii update needed, (if you have the 3.2U) the game run directly.
good game =)