VWii Decaffeinator Wii U

Restore your vWii without the need of a NAND Backup.

Please backup your SLCCMPT and OTP before using this tool.

Note: The author is not responsible for any damage done to your console. Always make a NAND backup before trying dangerous tools.

Installation

Copy the wiiu folder to the root of the SD card.

This utilizes the Wii U's tendency to redownload missing files during a System Update,

So this homebrew will remove Files that can be redownloaded and forces a System Update.

Select an option from the menu and confirm with Start.

After the mode finishes, press any button to launch System Settings for the update.

The update folder is recreated if deleted; delete it again to block updates.

Menu options	Actions
Light Mode	Redownloads essential System Titles, including all IOS.
Aggressive Mode	Removes everything, including Save Data and Installed Channels.
Force Update	Forces an update that may redownload missing files.
Regenerate setting.txt	Regenerates setting.txt, unrecoverable by other modes, based on the console's region and serial from the Wii U mode.
Advanced Options	Allows manual configuration of redownloadable items.

Error 105-3102 during update

Restart the console and retry the update in System Settings.

Error 160-0101 on console power-up

Remove any inserted Wii discs, then power on the console for a system update.

Updating with Tiramisu

After using the decaffeinator, follow the steps to Undo Autobooting into PayloadLoader and restart the console for the update. After completion, follow the guide to re-enable autobooting.

v2 2020/09/09

Now supports regenerating the setting.txt.
The file will be regenerated from the consoles region and serial which can be read from the Wii U mode.
This means it is now possible to restore a vWii from a 100% empty NAND.

v1 2020/05/29

Wii U Helpers from the Nintendo Homebrew Server for helping me with the Project.
All people who contributed to wut and libiosuhax.
rw-r-r-0644 for helping me with the proc UI loop.