his switch will let you turn your wiikey off and on. (i.e. Let you play original SSBB without an update).
1. Open up your Wii and locate the following points:
2. Solder the red points as show on the image above. Make sure you use enough wire so you can take the switch to the outside of the case. In the images below the wires are the blue ones.
3. Take the switch to the outside. One way you can do it is through the vents.
You can get the switch at almost any electronics store. They are quite cheap.