Things You'll Need
Instructions
Download "Bannerbomb" and "BootMii Installer" from the Resources and unzip the files to your computer.
Place the "Bannerbomb" contents and the "installer.elf" file from "Hackmii" onto the SD card. Rename "installer.elf" to "boot.elf."
Insert the SD card into the Wii and turn on the console. Click the small, round "Wii" icon in the lower left-hand corner, select "Data Management," click "Channels," followed by the "SD Card" tab.
Click "Yes" when a window opens asking whether you want to load "boot.elf." Wait for the warning screen to appear and press the "1" button on the Wii controller when instructed.
Select "Continue" by pressing the "A" button, then select "Install The Homebrew Channel" from the next menu. Allow the Wii to install the "Homebrew Channel" without interruption. The Wii console is now unlocked, and additional homebrew software can be installed through the "Homebrew Channel."