---
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 outbound Internet connection
* An SD card with at least 128 MB of free space
* [d2x cIOS Installer](https://sites.google.com/site/completesg/backup-launchers/installation/d2x-cIOS-Installer-Wii.zip?attredirects=0&d=1)

#### Instructions

1. Load the d2x cIOS installer: ![d2x cIOS Logo](https://sites.google.com/site/completesg/_/rsrc/1441626125476/backup-launchers/installation/icon.png)
1. Press continue, then set it to the following:
```
Select cIOS: 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 it to the following:
```
Select cIOS: 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 it to the following:
```
Select cIOS: d2x-v10-beta52
Select cIOS base: 58
Select cIOS slot: 251
Select cIOS version: 65535
```
1. Run it again, then exit once done.

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