Last week I hacked my Wii U using this guide, I've read the vwii hacking part and also this thread. While the basis of both is more or less the same, there are a couple of things I wanted to check before hacking the vwii part of the Wii u. Both guides mention using Dump Mii NAND and Yet Another BlueDump Mod, while only the definitive guide thread mentions using the xyzzy to dump the keys. Is the key dump part required? One guide mentions patching/modifying IOS 236 and the othe IOS 80, which one is required?