To format the Wii U system, select the Format System option in the Root Menu, and then press the A Button. Press the Y Button to confirm that you want to format the system.
Formatting the system performs the following:
It may take a few minutes depending on the volume of data. Do not turn OFF the system until the format process finishes.
Format does not change or delete the following data:
After the format finishes, run
cafeon to restart the CAT-DEV, and again set the date and time, regions,
language, and country. Using the TV or monitor and the Wii U Pro Controller, pair the GamePad to the CAT-DEV. For more information, see the CAT-DEV QuickStart Guide.
To use USB storage again, the USB storage must also be formatted. For more information, see Format the USB Storage Device.
2013/10/15 Updated for SDK 2.10.03
2013/05/08 Automated cleanup pass.
2013/02/15 Divided long document into multiple html docs