ok, something new.
I got a friend here, he updated his wii yesterday...
Using IOS236 installer gives me the "there's nu vulnerable IOS" error and can't install IOS236.
Managed to work around it with:
-cBoot2 >> MMM
-MMM >> uninstall IOS 249 + 250
-MMM >> Install IOS 222,223,249,250
-WM1.7 @...