Basically, I used this guide that overlapped the two haxchi
1) Download a DS VC game that you don't like such as Big Brain Academy or Brain Age using something like Wii U USB Helper or Funkii-UI
2) Add the DS VC to an install folder on your SD
3) Download these
Secondary Haxchi files and add them to your SD card, replace the files
4) Turn on your Wii U and it will autoboot cfw (The system menu option in CBHC)
5) Use your browser and go to loadiine.ovh/550/HBLK
6) Once on Homebrew Launcher, choose WUP Installer Y Mod
7) Install the DS VC to system memory then press home to exit (
DO NOT install to USB storage)
8) Choose Haxchi and install it over the DS VC game you just installed (
DO NOT install it over the one used for coldbooting!!!) If you get stuck on a white screen, turn it off and try agan"
This was removed from the guide after I talked to him