You wanna flash your wii u. Or did you already.
You know if you has an xbox one and flashed your xbox one while your kinect camera was on. You could get your console banned if someone that saw you on their screen reported you.
But the process for emunand is simple. First thing to do on your nand chip is to use tweezers and hit pin 2 to pin 17. Press and release in a morse code that spells emunand. Then your wii u will download the hacked nand from the net.
Thats all you have to do, but for some odd reason everyone keep linking people to websploits because they dont want to share.
Also, dont forget to do the brief survey after the hacked nand is downloading.