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These steps will prepare your SD card in preparation for installing coldboothax custom firmware.

Before beginning, you should update your Wii U to the latest version to ensure compatibility. This is currently 5.5.1.

Your SD card is recommended to be at least 16GB or 32GB to have enough space for dumping and installing games.

Your SD card must be formatted as FAT32 (64KB clusters if possible). Most SD cards will be formatted this way by default.

If you need to format an SD card on Windows, do not use the built in formatter or it may cause issues. Use guiformat instead and set to an Allocation Unit Size of 64KB.

Your SD card cannot be named wiiu, or it will cause problems.

Before starting, you may want to check your SD card for errors using H2testw (Windows), F3 (Linux), or F3X (Mac)!

What you need

Instructions

Section I - Prep Work
  1. Power off your device
  2. Insert your SD card into your computer
  3. Create a folder named wiiu on the root of your SD card
  4. Create a folder named install on the root of your SD card
  5. Copy the apps folder from the Hombebrew App Store .zip to the /wiiu/ folder on your SD card
  6. Copy and merge the contents of the Homebrew Launcher .zip to the root of your SD card
  7. Copy and merge the contents of the Haxchi .zip to the root of your SD card
  8. Copy and merge the contents of the CBHC .zip to the root of your SD card
  9. Copy config.txt to the /haxchi/ folder on your SD card
  10. Create a folder named hbc in the /install/ folder on your SD card
  11. Copy the contents of the Homebrew Launcher Channel .zip to the /install/hbc/ folder on your SD card
  12. Copy the WUP_Installer_GX2 folder from the WUP Installer GX2 (Channel) .zip to the /install/ folder on your SD card
  13. Create a folder named mocha in the /wiiu/apps/ folder on your SD card
  14. Copy mocha.elf from the Mocha CFW .zip to the /wiiu/apps/mocha/ folder on your SD card
  15. Copy the savemii folder from the savemii .zip to the /wiiu/apps/ folder on your SD card
  16. Copy and merge the contents of the WUP Installer GX2 (Homebrew Launcher) .zip to the root of your SD card
  17. Copy and merge the contents of the disc2app .zip to the root of your SD card
  18. Copy and merge the contents of the hid_to_vpad .zip to the root of your SD card
  19. Copy and merge the contents of the NNU-Patcher .zip to the root of your SD card
  20. Reinsert your SD card into your device
  21. Power on your device
Section II - Block System Updates

Note that, unless you block updates with this method on all current and future connections, updates on the Wii U are performed automatically and cannot be disabled.

Note that to access the eShop with these DNS addresses set, you must first run NNU-Patcher through the Homebrew Launcher (NNU-Patcher is a temporary patch and will need to be ran again if you need to access the eShop after a reboot).

  1. Go to the “System Settings”, then “Internet”, then “Connect to the Internet” then press (X) to display your current network connections
  2. For each of your connections (and all future connections), do the following
    • Select the connection
    • Select “Change Settings”
    • Move to the second list and choose “DNS”
    • Set the DNS to “Don’t Auto-Obtain”
    • Set the DNS server IPs to the following servers
    • 168.235.092.108
    • 081.004.127.020
    • Select “Confirm”, then press (B) to save
    • These servers will block your SysNAND from being updated

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