TubeHax should block from the update downloading anything.. You shouldn't even have a partial. But I've heard people say they had to run the Update Deleter a few times before it actually worked.
There was an X next to the downlaod manager, and when i clicked on it it said it wanted to download a firmware update. But i never connected to a router or android device with internet. That's strange.
P.S. the wii sports was a bad dump.