D2x-cIOS Wii - wiidev

D2x-cIOS
General
Author	wiidev
Type	System Tools
Version	d2x-v11-beta3
License	GPL-3.0
Last Updated	2025/03/23
Links
Download
Website
Source

The d2x cIOS is a custom IOS (Input Output System) developed for the Nintendo Wii and Wii U consoles. It enhances the capabilities of the original IOS by enabling the execution of homebrew applications, emulators, and backup loaders, thereby expanding the console's functionality beyond its official firmware.

The d2x cIOS is an evolution of the cIOSX rev21 by Waninkoko, incorporating additional features and stability improvements. It is designed to be installed in specific IOS slots (commonly 249 and 250) and can be configured with different base IOS versions to suit various applications.

Installation

Installation can be performed using tools like the d2x cIOS Installer or ModMii. For documentation and tutorials visit this Wiki.

Media

How to Install D2x Cios on the Wii in 2025 (D2X CIOS Beta 3 ) (Below Average Gaming)

Changelog

d2x-v11-beta3

• Fixed IOS38 version identification for Wii. It was originally set to the wrong value 13 years ago.

d2x-v11-beta2

• Improved WiiWare & VC compatibility by using some MEM1 safe functions.
• Improved game compatibility when using base IOS58 by ignoring encrypted USB drives that are used for Wii U games.
• Added base IOS38 v4380 support for vWii.
• Enabled Korean key patching for vWii.
• Fixed a typo that made the FAT module not reproducible.
• Reduced memory usage for the EHCI module.

d2x-v11-beta1

• Fixed RiiConnect24 compatibility by removing the SDHC module and adding the SDHC functions directly to the cIOS lib.
• Added EmuNAND UStealth support thanks to airline38.

External links

• Github - https://github.com/wiidev/d2x-cios