Wii:Backing up your NAND

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A NAND backup is an important safeguard to have, in the rare case you brick your Wii. As well, NAND backups can be imported into emulators such as Dolphin, where you can launch an emulated copy of your Wii's System Menu. To backup your NAND, you'll need:


  • A hacked Wii, with BootMii installed as an IOS or Boot2
  • A 512MB SD card or larger with the Bootmii files on the SD Card
  • A GameCube controller to navigate BootMii, because Wii Remotes aren't supported (optional; you can use the POWER and RESET buttons on the Wii to navigate instead)


  1. Insert the SD card into your Wii.
  2. For IOS Users: Open the Homebrew Channel.
    • Press the HOME button on the Wii Remote, then select "Launch Bootmii". Your Wii should reboot into BootMii.
  3. For Boot2 Users: Reboot your Wii with the Bootmii Files on your SD Card
  4. Use the POWER button, or right on the GameCube D-pad to cycle between options. Select them with the RESET button or A on the GameCube controller.
  5. Select the option with the image of the gears (Settings).
  6. Select the option with the image of the green arrow pointing to the SD card. This is the backup option.
  7. BootMii will begin backing up your NAND to the SD card, showing the progress on the screen. If your see any "bad blocks", don't worry; they're to be expected in the type of NAND chips used by the Wii.
  8. Once the backup has finished, press any button to exit the backup screen.
  9. Exit BootMii by selecting the option with the image of the big arrow (Exit), and then selecting either the Wii Menu option or the Homebrew Channel option to exit to either.
  10. Copy the 'nand.bin' and 'keys.bin' on the SD card to a safe location on your computer; these are the NAND dump files needed to restore your Wii in case you brick it. You should also back it up to some sort of cloud storage.

Restoring a Backup

Note IOS Users: It is not recommended you restore a NAND backup as it will potentially result in further bricking your Wii. If you can get into BootMii, you can launch other homebrew applications to fix a brick such as Multi Mod Manager.
Warning Make sure your power is stable during this process regardless of your installed version of Bootmii. If power is cut at any point, this could potentially ruin your Wii in an unfixable manner.
  1. Make sure the 'nand.bin' and 'keys.bin' files that you want to restore from are on the root of the SD card in the Wii.
  2. Complete the same steps as before, but this time select the option with the image of a red arrow pointing away from the SD card. This is the Restore option.
  3. IOS Users: You need to use a GC Controller and input the Konami Code in order to continue: Up-Up-Down-Down-Left-Right-Left-Right-B-A-Start. The reason behind this is because restoring with Bootmii/IOS is dangerous and inadvisable by Team Twiizers, developers of Bootmii.
  4. Press Eject and then the restore process should begin. Once the dated "I HAZ SUCCESS" message appears, the restoration process is complete. Press any button to exit RestoreMii.