Coldboot Haxchi

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Coldboot Haxchi
File:Haxchi logo.png
General
Author(s)FIX94
TypeSystem tool
Version2.5u2_v1.6
Links
Download
Source
Downloadable via the Homebrew App Store
Warning!
This homebrew installs content to your Wii U that is persistent after a reboot, and may void your warranty.

Coldboot Haxchi (also known as CBHC) is a version of Haxchi that automatically launches on boot. Care must be taken, as there are several bricking risks.

Bricking risks

To prevent your Wii U from being bricked, do not do any of the following:

  • Do NOT move the CBHC channel to a USB device or anywhere outside the NAND.
  • Do NOT uninstall the Coldboot Haxchi channel without properly uninstalling Coldboot Haxchi first.
  • Do NOT format the system memory.
  • Do NOT delete the user that bought the DS game Haxchi was installed on top of.
  • Do NOT download the DS game Haxchi was installed on after CBHC was installed.
  • Do NOT install Haxchi again inside CBHC.

Installation

  1. READ THE WARNINGS ABOVE!
  2. Install regular Haxchi if you have not done so already.
  3. Open the Haxchi Channel.
  4. Open the Haxchi Channel again, but hold A to load the Homebrew Launcher.
  5. Download the CBHC installer via the Homebrew App Store.
  6. Run the CBHC installer.
  7. When prompted to select a DS Virtual Console game, select the same one you installed Haxchi on.
  8. Press A to install CBHC.
  9. Reboot your console to allow CBHC to start.
  10. There should be a new channel installed: the CBHC channel. Move the CBHC channel to an empty screen so it doesn't get deleted by accident.

Uninstalling

Before uninstalling the CBHC channel, be sure to follow this procedure.

  1. Open the Homebrew Launcher.
  2. Open the CBHC installer.
  3. Select the DS game you used to install Haxchi and CBHC.
  4. Press B to uninstall CBHC.
  5. CBHC should be gone when you reboot your console. It is now safe to delete the game, and reinstall it to start playing it again.

Usage

When booting the Wii U, a menu will come up, asking what you want to boot, with an option to automatically boot to one of the options. When autoboot is enabled, this menu can still be accessed by holding the HOME button during the booting process.

The DS game you chose during installation gets replaced by a CBHC channel (titled "Haxchi"). DO NOT tamper with this channel! It is advised that you move it to an empty screen so it doesn't get deleted by accident.

How it works

CBHC replaces the /vol/system/config/system.xml to tell Cafe OS that the CBHC channel is the System Menu. This allows it to run and load anything it wants, similar to Priiloader on the Wii. This CBHC channel has the loader seen when booting. Because of this, removing the CBHC channel from the NAND makes it impossible for the Wii U to boot, and therefore bricks it.

Additionally, because Haxchi loads the System Menu using the title ID that CBHC overwrites, installing Haxchi again without uninstalling CBHC causes Haxchi to constantly boot itself, bricking the Wii unless Haxchi was configured to have an option to boot to the Homebrew Launcher.