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LetterBomb is an exploit for the Wii that is triggered using the Wii Message Board.

What you need

  • An SD card
  • A Wii on System Menu version 4.3


  1. On your Wii, go to Wii Settings -> Internet -> Console Information and make note of your MAC address.
  2. Visit please.hackmii.com, input your Wii MAC and region, complete the CAPTCHA, ensure Bundle the HackMii Installer for me! is checked, and cut either wire
    • Whichever wire you choose to cut doesn’t matter. HackMii Screen
  3. Extract the contents of the downloaded ZIP to the root of your SD card.
  4. Take out your SD card and insert it in your Wii.
  5. On your Wii, return to the Wii Menu and then open the Wii Message Board.
  6. Load the red letter with a bomb icon.
    • In various scenarios, you may need to look at the previous or next day to find it.

Ensure the date on your Wii is correct, otherwise you might be unable to find the letter.

LetterBomb Wii Menu

Continue to Homebrew Channel and BootMii Installation