Things You'll Need
Instructions
Format your SD or SDHC card before it will be compatible with Wii homebrew software. To do this, insert the SD card into your computer and go to "My Computer." Right-click on the SD card. Select "Format." Choose "FAT32" and "Quick Format." Select "OK."
Navigate to the HackMii website and download the HackMii installer. Once downloaded, extract the HackMii installer and you will find a DOL file. Put the DOL file on the root of your SD card.
Determine the hack you would like to use to install the Homebrew Channel to your Wii from the Wii Brew website. The Twilight Hack is for Wii System Menu 3.2-3.4. The Banner Bomb hack is for Wii System Menu 3.2-4.2. The Brawl Smash Stack and Indiana PWNs hack are for any Wii system menu. You must have either the "Super Smash Bros. Brawl" game or "Indiana Jones" game for the Brawl and Indiana hacks.
Place the files you download on the root of your SD card. Also place any apps files into a folder named "Apps." Place emulators into their corresponding folders and their ROMs into a folder named "ROMS." Most Wii applications, emulators and programs will tell you where to place them on the SD card for proper usage. Read the readme file included with the Brawl and Indiana hacks for additional information on how to boot them. These games require that you copy a hacked save file to your Wii and then play the game until a certain point to enable the hack. The Twilight and Bannerbomb hack are launched by going into the "Memory Management" menu from the Wii and selecting the SD card. There will be a file on the SD card for the hack. You select the hack to initialize it.
Press "1" on your Wii mote when prompted to do so to install the Homebrew Channel and BootMii. The installation will take over and finish. Your Wii will reboot when finished to the Wii main menu.
Access the Homebrew Channel from the Wii main menu by clicking on the channel and pressing "Start."