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---
title: "LetterBomb"
---
![LetterBomb ](/images/letterbomb.png )
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LetterBomb is an exploit for the Wii that is triggered using the Wii Message Board.
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#### What you need
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- An SD card formatted to FAT32/MS-DOS
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- A Wii on System Menu version 4.3
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#### Instructions
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1. On your Wii, go to `Wii Settings` -> `Internet` -> `Console Information` and make note of your MAC address.
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1. Visit [please.hackmii.com ](https://please.hackmii.com/ ), input your Wii MAC and region, ensure `Bundle the HackMii Installer for me!` is checked, and cut either wire.
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![HackMii Screen ](/images/Wii/LetterBomb-PC.png )
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1. Extract the contents of the downloaded ZIP to the root of your SD card.
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1. Take out your SD card and insert it in your Wii.
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- The SD card must be inserted in the SD card slot located in the front of the Wii. Using a USB adapter plugged into the Wii's USB port will not work.
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1. On your Wii, return to the Wii Menu and then open the Wii Message Board.
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1. Load the red letter with a bomb icon.
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- Ensure the date on your Wii is correct, otherwise you might be unable to find the letter.
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- In various scenarios, you may need to look at the previous or next day to find it.
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- If you don't see the red letter, check if any errors appear in the SD card sections in `Data Management` . If any do, there may be an issue with the SD card format or the Wii’ s SD card reader.
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- If your Wii freezes after clicking on the letter, you probably chose the wrong region when downloading the exploit. Redo Step 2 and select the correct region.
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![LetterBomb Wii Menu ](/images/Wii/LetterBomb-Wii.png )
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[Continue to Homebrew Channel and BootMii Installation ](hbc )
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