A custom IOS for the Wii and Wii-U console, i.e. an IOS modified to add some new it is on your sd card or usb device into the folder /apps/d2x-cios-installer. Install a cIOS to run advanced Wii homebrew applications. USB loader. USB loaders do not require DVD burning and have much better speeds and interfaces . This guide will explain how to install USB Loader GX on your Nintendo Wii. A Soft-modded Nintendo Wii with the Homebrew Channel and the latest cIOS. I just got a Wii on and i have installed HBC, through Letterbomb and ". ading any cIOS, USB loader GX requires at least cIOS or. This tutorial will tell you how to install cIOS (custom IOS). This is required if you want to load games with a USB Loader. Some homebrew might work better using . I tried doing my research before doing anything to my wii, and got USB Loader GX running gamecube games smoothly through Nintendont.