This section of the guide will help you to prepare everything.
Step 0: What You Will Need¶
A SD Card (or Micro SD card + adapter)
We recommend a SD with at least 4GB+ even if not needed. A small SD card is enough to get CFW running, but larger ones are preferred for installing games and performing NAND backups efficiently.
If you want to backup your Wii U, you should use a SD at least twice the size of your console (16GB for the white console and 64GB for the black one)
A working internet connection on your Wii U
The browser exploit requires internet (Crazy, I know). If you decide to install Haxchi this is only needed once however.
One of the following games if you want Haxchi:
NOTE: This is not required if you just want to run the Browser exploit. We do recommend buying one of these games though
WARNING: Don’t use a pirated copy of these games. This will result in a brick.
Compatible Haxchi Games
Animal Crossing: Wild World
Big Brain Academy
DK: Jungle Climber
Dr. Kawashima’s Brain Training
Kirby: Canvas Curse
Kirby: Mass Attack
Kirby: Squeak Squad / Kirby: Mouse Attack
Legend of Zelda: Phantom Hourglass
Legend of Zelda: Spirit Tracks
Mario & Luigi: Partners in Time
Mario Kart DS
New Super Mario Bros.
Pokemon Mystery Dungeon: Explorers of the Sky
Pokemon Ranger: Guardian Signs
Pokemon Ranger: Shadows of Almia
Super Mario 64 DS
Wario: Master of Disguise
Yoshi’s Island DS
Yoshi’s Touch & Go
We recommend buying Brain Age as it’s the cheapest at 6.99€ ($6.99 USD). However any of those games work fine!
If you had Brain Age or Brain Training installed for a very long time, please consider deleting and redownloading it as older versions are not compatible with Haxchi.
Step 1: Format your SD Card¶
The Wii U needs a FAT32 formatted SD card. However unlike the Switch, only FAT32 works!. If you need to format your SD on Windows and you can’t find FAT32 as a selectable option, use guiformat and set the Allocation Unit Size to 32K (32768).
Don’t call your SD “wiiu”, this will cause problems later on
Step 2: Download Kosmos Wii U¶
Grab the latest version of Kosmos-Wii-U from https://github.com/NicholeMattera/Kosmos-Wii-U/releases
Insert your SD card into your PC
Open `Kosmos-WiiU-vX.zip` with a ZIP Archiver of your choice
Copy the content of the ZIP onto your SD
You should now have a `wiiu`, `haxchi` and `install` folder on your SD
Congratulations, we’re done with preparations.
Continue to Exploits and You