I doubt that ... everything they built, either software or hardware is based of work that was already available from peeps who figured it out on their own.
T-X might have realy invented stuff back in the original XBOX' days, but the 360 scene was built from homebrew coders.
So I doubt that when I tell them to take a look at the Wii (U) NAND, that they can say something about that
We need someone here with Wii coding expertise who knows his way around messing with certain registers.
Preferbly someone who coded stuff specifically for vWii before, because I have a feeling that NAND_UNK does something different on vWii than on a real Wii.
Would be cool if @Marionumber1 have a few more ideas about that ... I'm just thinking out loud here.
On the Wii, boot2 writes 1 to it when reloading to a new IOS. vWii has no boot2, so it makes sense that they might use NAND_UNK for bank switching instead of whatever it was before. If I had to guess, writing a 1 would switch to the Wii U bank, but I haven't tried this.