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How To Hombrew Your Wii U with Mocha CFW - Printable Version

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How To Hombrew Your Wii U with Mocha CFW - MasterMarc888 - 05-19-2020

Homebrew
Quote:Homebrew applications are custom, user-made software, which haven’t been authorized by Nintendo. This can include save editing tools, games, emulators, and more.
Homebrew can be run on your Wii U as long as you have a way to put files on an SD Card and your Wii U is updated to the latest version for your region.
Custom Firmware
Quote:Custom Firmware (“CFW”) enables you to use more advanced hacks that userland homebrew can’t easily do. For instance, installing game modifications with ease. CFW can be set up on any console on the latest version.
Homebrew & CFW Uses
Quote:Among other things, it allows you to do the following:
  • Use “ROM hacks” for games that you own

  • Backup, edit and restore saves for many games

  • Play games for older systems with various emulators, using RetroArch or other standalone emulators

  • Play out-of-region games

  • Dump your Wii U game discs to a format that can be installed on your internal or external Wii U storage drive.
End Goal
Quote:This guide has the end goal of taking a completely unmodified Wii U from stock to Custom Firmware.
Before Starting
Before beginning the guide, you must know the risks of Wii U hacking: EVERY time you modify your system, there is always the potential for an UNRECOVERABLE brick. They’re rare but still a possibility so make sure you follow ALL directions EXACTLY.
Quote:This guide will work on all Wii U consoles in all regions on firmware 5.5.4 or below.
You will need the following in order to successfully follow this guide:
  • An SD Card

  • A device such as a computer to place files onto the SD Card

  • A Wii U with internet access
Your SD Card should preferably be 32 gigabytes large, as a full NAND backup for the console will take up around 8 or 30 gigabytes depending on your model.
If everything goes according to plan, you will lose no data and end up with everything that you started with (games, NNID, saves, etc will be preserved).
Keep your device plugged in throughout the entire process to avoid data loss or damage from an unexpected power-off.
With the exception of ColdBootHaxchi, Custom Firmware is not permanent with current methods and will be unloaded upon rebooting the system.
It is advised that you read the entire guide from start to finish one or more times before actually running through the guide with your system.


We will now place the required CFW files and some additional homebrew files on the SD Card.

Notice Your SD Card will need to be formatted as FAT32. If your SD Card is not formatted to FAT32, use GUIFormat with 32k (32768) Allocation unit size to format it.

What You Need
The Mocha config
The latest release of Homebrew Launcher Installer
You will need to download the payload.zip file.
The 1.4 release of The Homebrew Launcher
You will need to download the v1.4 homebrew_launcher.v1.4.zip release of The Homebrew Launcher
The latest release of WUP Installer GX2
The latest release of Wii U NAND Dumper
The latest release of the Homebrew App Store
You will need to download the wiiu-extracttosd.zip file.
The latest release of Mocha
The latest release of SaveMii mod
Instructions
Notice The info.json and manifest.install files are not needed for the modding process and therefore can be deleted.

Insert your Wii U’s SD Card into your PC.
Extract the wup_installer_gx2.zip file to the root of your SD Card.
Extract the nanddumper.zip file to the root of your SD Card.
Extract the wiiu-extracttosd.zip file to the root of your SD Card.
Extract the homebrew_launcher.v.1.4.zip file to the root of your SD Card.
Extract the mocha.zip file to the root of your SD Card.
Extract the savemii_mod.zip file to the root of your SD Card.
Copy the config.ini file to the /wiiu/apps/mocha folder on your SD Card.
Copy the payload.elf from the payload.zip to the wiiu folder on your SD Card.



To install CFW, we first need to launch the Homebrew Launcher through the browser exploit. Make sure your Wii U has internet access for this step.


Instructions

Take the SD Card out of your computer and plug it into your Wii U console.

Launch the internet browser and open wiiuexploit.xyz.

Click on Run Homebrew Launcher!. Your console should launch the Homebrew Launcher.
If your Wii U gets stuck on a white or otherwise frozen screen, wait a few seconds. If nothing happens, reboot the console, reset the browser’s save data and try again.



This next step is optional but recommended

In case anything should go wrong in the later process and your Wii U ends up bricked, restoring a previously made NAND backup can fix it.


Instructions

The Wii U NAND is (depending on your model) either 8 or 32GB. As a result of this, to create a full backup of your console’s NAND, your SD Card has to be larger than the size of your NAND. If you do not have a large enough SD Card, you can skip the optional MLC section which includes save files and game data and is not needed to recover most types of bricks.



Restoring a NAND Backup on the Wii U requires additional hardware and micro soldering skills.

However, making a NAND Backup is always useful, so please do not skip it.

Your NAND Backup is unique to your system. Backups from other consoles won’t work.



Navigate through the Homebrew Launcher and launch the Wii U NAND Dumper app.

Use the Wii U Gamepad’s DPAD to enter the following configuration:

Dump SLC: yes

Dump SLCCMPT: yes

Dump MLC: optional

Dump OTP: yes

Dump SEEPROM: yes

Press the A button to start the dumping process.

When the process completed, power off your Wii U, take your SD Card out of the Wii U and plug it into your PC.

To make sure you don’t lose the files, copy the slc.bin, slccmpt.bin, seeprom.bin, otp.bin and if you chose to go with a full backup, every mlc.bin.part file to your computer.
Delete the files from your SD Card to free up space.



If you have any questions feel free to ask in comments