can someone please help me ive looked at several guides and read several guides and i still dont know how to downgrade my wii from system menu 4.2u to 3.2u or 4.0u or whatever and i cant get ios 249 250 222 223 to work in wad manager 1.4 1.5 so therefor i can install the usb loader channel or the backup channel can someone plaese help me