I have my wii on a 3.3 E firmware, witch Cios rev13a installed and usb loader and bachup loader installed (and homebrew channel) now my wii is running out of space and the SD function that come with 4.0 is very appellative , but after the update will i be able to run wad installer 1.4? what will happen to my already installed wads? Usb loader will work just fine your it will lose some compatibility with some HDD disks?