---
title: "cIOS"
---

{% include toc title="Table of Contents" %}

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 cIOS.

![cIOS Logo](/images/cIOS.png)

#### What you need

* A Wii with an Internet connection
* An SD card
* [d2x cIOS Installer](https://sites.google.com/site/completesg/backup-launchers/installation/d2x-cIOS-Installer-Wii.zip?attredirects=0&d=1)

#### Instructions

##### Section I - Downloading

1. Extract d2x cIOS Installer and put it in the `apps` folder on your SD Card.
1. Insert your SD Card into your Wii, and launch d2x cIOS Installer from the Homebrew Channel.

##### Section II - Installing

1. Press continue, then set the options to the following:
```
Select cIOS: v10 beta52 d2x-v10-beta52
Select cIOS base: 56
Select cIOS slot: 249
Select cIOS version: 65535
```
![Install cIOS 249](/images/Wii/Install249.png)
1. Once set, press A to install.
1. When done installing, press A to return, and set the options to the following:
```
Select cIOS: v10 beta52 d2x-v10-beta52
Select cIOS base: 57
Select cIOS slot: 250
Select cIOS version: 65535
```
![Install cIOS 250](/images/Wii/Install250.png)
1. Once set, press A to install.
1. When done installing, press A to return, and set the options to the following:
```
Select cIOS: v10 beta52 d2x-v10-beta52
Select cIOS base: 58
Select cIOS slot: 251
Select cIOS version: 65535
```
1. Run it again, then exit once done.

##### Options once complete

[Continue to RiiConnect24](riiconnect24)<br>
RiiConnect24 will let you use WiiConnect24 features again, such as Wii Mail and certain channel. This is optional to install.
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[Continue to Wiimmfi](wiimmfi)<br>
Wiimmfi lets you play games online after the discontinuation of Nintendo Wi-Fi Connection. This is optional to install.
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We have many other tutorials that may help.
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