3DS / Wii U parental controls master key generator.

[maff]

Thought this might be useful for any Nintendo DS or wii U owners.

https://mkey.salthax.org/

You'll need to obtain an "enquiry number" from your device to use with the generator.

http://www.supercheats.com/3ds/how-to/how-to-retrieve-your-forgotten-parental-control-pin