To quote from dhewg (via hackmii.com/2012/12/hbc-release-for-a-new-wii-u/): Another year, another console, another Hackmii Installer!
Download: HackMii Installer v1.1 / HackMii Installer v1.2
HackMii Installer v1.1 is capable of installing:
- BootMii 1.5
- The Homebrew Channel 1.1.1
Despite all of the anti-reverse-engineering tricks we put into our last installment of the HackMii Installer, Nintendo managed to find the IOS exploit we used to install The Homebrew Channel and fix it sometime within the last two years. There never was a Wii system update for this, the fixed IOS versions can only be found on a Wii U.
They also blocked our old title ID. Consequently, we have a new release with a new version of The Homebrew Channel; this will install on both Wii consoles, and inside the virtual Wii sandbox inside the Wii U. The currently used IOS exploit is courtesy of tueidj.
Please note that this is not running in full Wii U mode; running this on a Wii U will probably work just like on a Wii. (See if you can find any differences, we can all try to hack the Wii U together from inside Wii mode!)
Also, due to technical limitations of the virtual Wii mode, BootMii will not work on a Wii U. If we are able to resolve this, we will make a new release with BootMii support.
As usual, grab the new installer here (linked above). If you’re unsure what do to with the installer, see this wiki page (wiibrew.org/wiki/Homebrew_setup) for a general tutorial on how to setup homebrew on your Wii, and this one at the brand new wiiubrew.org for savegame exploits that still work on a Wii U.
How to install .WAD files in WiiMode on your Wii U (via wiiuhax.com/wiiuhax-com-tutorial-how-to-install-wad-files-in-wiimode-on-your-wii-u/)
WHAT YOU NEED:
(A) 1 or 2GB SD card FAT32 formatted
(B) boot.elf from hackmii_installer_v1.2 in the root of your SD Card
(C) Smash stack hack (wiiubrew.org/wiki/Smash_Stack) files on your SD (link)
(D) MMM in your \apps\ folder
(E) IOS236 Installer MOD v6 Special vWii Edition folder in your \apps\ directory
(F) IOS36-64-v3864.WAD file in your SD root
(G) Your other desired *.WAD (games, emus) in \WAD\ on your SD CARD
* IMPORTANT: Do NOT insert your SD card before STEP #3 below *
WHAT TO DO:
#1 Power on your Wii U, insert SSBB disc and launch Wii Mode.
#2 Once in Wii mode launch the Wii Disc Channel
#3 When the health warnings appear, insert your SD card
#4 Navigate in the menu to VAULT, and select STAGE BUILDER.
#5 Follow the instructions on screen and select INSTALL HOMEBREW CHANNEL.
#6 Launch IOS236 Installer MOD v6 Special vWii Edition from HBC
#7 Launch MMM, press the LEFT direction once on the DPAD, and then navigate to “236″ and press A.
#8 Install your favorite WADs
Credit: bubba (big thanks for walking me through all the steps!), damysteryman (modified IOS236 installer for use on Wii U vWii)