If you have recently bought a Wii U and find yourself with an account or two that is password locked, this is how you can delete them without acquiring the passcode.
Instructions
- Download the latest release of FTPiiu.
- Extract the contents of the zip to the root of your SD card.
- Download an FTP client of your choice(Filezilla, WinSCP, .etc).
- Insert the SD card back into your Wii U and boot up Aroma.
- Open the plugin menu, navigate to the FTPiiu tab and your IP should show.