Hacking Wii U System Error?

[Jawsguaari]

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[AutumnWolf]

You probably installed haxchi over a pirated DS game, nothing you can do

 

[Dust2dust]

Let's not jump to conclusions too fast. Can you tell us what you did to install "homebrew"? Did you install haxchi? CBHC? Were you following any guide? The more explanations we have, the better you can be helped (if possible).