System Backup

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In case anything goes wrong, you’ll want to back up your system NAND before installing CBHC. While optional, we heavily recommend that you do.

Note that if you have a 8GB/32GB Wii U, you’ll need around 8GB/32GB of free space on your SD card respectively


  1. Download the latest release of Wii U NAND Dumper
  2. Extract the contents of the Wii U NAND Dumper .zip to the root of your SD card
  3. Insert the SD card into your Wii U
  4. Launch the Haxchi title while holding A to launch the Homebrew Launcher
  5. Launch the Wii U Nand Dumper
  6. Change all of the options on screen to Yes
  7. Press A to begin dumping
    • The process may take up to 1 hour for 8GB consoles
    • The process may take up to 3 and a half hours for 32GB consoles
  8. Once finished, transfer your backup to your computer for safekeeping