https://www.youtube-nocookie.com/embed/U3j7CVF8q2Y
Instructions
- Place all files required for booting into your homebrew environment on your SD Card (for example from aroma.foryour.cafe).
- Place a RPX you want to boot on the root of your SD Card and rename it to launch.rpx (for example PayloadFromRPX).
- On your Wii U head over to System Settings -> Internet -> Connect to the Internet and setup a new connection...
Source: https://gbatemp.net/threads/dnspresso-a ... it.642123/