Guide_Wii/_pages/en_US/cios.md

title
cIOS

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This tutorial will teach you how to install cIOS (custom IOS). While this is a recommendation (homebrew might work better), it is a requirement for USB Loader applications.

Requirements

• An SD card or USB drive

• [d2x cIOS Installer] (/assets/files/d2x-cIOS-Installer-Wii.zip)

• Windows PC + NUS Downloader

  • This is only required if you cannot connect your Wii to the internet.

Instructions

Section I - Offline NUS Downloads

[Skip to the next section if this doesn't apply to you](#Section II - Managing d2x cIOS installer) {: .notice--info}

1. Extract and launch NUS Downloader.
2. Make sure that "Pack WAD" is enabled.
3. Using the database, navigate to the following files and press start NUS Download for each one:
   • IOS -> IOS56 -> v5661
   • IOS -> IOS57 -> v5918
4. Navigate into the new titles directory where you placed NUS Downloader
   • You will find two new folders in this directory: 0000000100000038 & 0000000100000039.
5. In each directory, there is another directory for the version you just downloaded. Open this version folder and find a WAD file:
   • 0000000100000038 -> 5661 -> IOS56-64-v5661.wad
   • 0000000100000039 -> 5918 -> IOS57-64-v5918.wad Copy both WAD files to the root of the storage device.

Optionally, if you wish to verify that the downloaded WADs are correct, use a checksum tool (like fciv) to verify:

IOS56

• MD5: 5cdee6593cf0dacc18cf300b12166fde
• SHA1: 597c360e521ccd3062fd9c38c5369e691344d5e2

IOS57

• MD5: ac8bbbea38f29e8d8959badb3badf18e
• SHA1: b8fd4efbb6d7ae2f4e9328b3082901f5981701b1

Section II - Managing d2x cIOS installer

• Extract d2x cIOS Installer and put it in the apps folder on your SD card or USB drive.
  • Your storage device should look like this:

  SD
  |- IOS56-64-v5661.wad (optionally, for Wii offline guide)
  |- IOS57-64-v5918.wad (optionally, for Wii offline guide)
  |- /apps
    |- /d2x-cios-installer
  

2. Insert your SD card or USB drive into your Wii, and launch d2x cIOS Installer from the Homebrew Channel.

Section III - 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 (In some cases, it may warn you that the current (c)IOS or IOS STUB will be overwritten. You can ignore this warning.)
Select cIOS version: 65535
   - This revision is only used by the Wii when checking updates. It is set to the highest version to prevent a system update from overriding it with a non-functional official IOS. 

2. Once set, press A twice to install. 3. 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

4. Once set, press A twice to install. 5. 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

6. Run it again, then exit once done.

Options once complete

You can now use homebrew such as USB Loader GX. {: .notice--info}

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