Step 1: Update you're Wii to 4.3 if it isn't already.
Step 2: Install the Homebrew Channel with the LetterBomb exploit.
*For further help softmodding your Wii refer to this guide made by THE D3MON: http://www.disturbedcore.com/index.php?topic=81.0
Step 3: Download the following applications: iOS 236 installer v5.1, Cios installer rev21 (to patch iOS 249), Wad Manager, and WiiFlow. Put all these applications in a folder on the root of your sd card called "apps". *The Download links for all these applications/cios are at the bottom of the tutorial.
Step 4: Download Cios 224 v5 base 57 and put it in a folder on the root of your sd card called "wads"
Step 5: Go to your Wii and load iOS 236 installer. Install it and when it's done make sure you choose the option "I have no need for piracy"!
Step 6: Load cios installer and choose ios 236 to install the ios. Then choose base 57 for the next step. Finally for the last step choose ios 249. This will patch ios 249 so you can use wad manager for the next step.
Step 7: Load wad manager and when it asks which iOS to use select iOS 249. After that go down to your wad folder and install the cios 224 wad.
*Now go back to your computer*
Step 8: Download and install WBFS manager 3.0 and format you're USB with it. (Please note that formatting erases everything on your hardrive! Backup any important files!)
Step 9: Now that you're wii is capable of playing backups you will need an .iso (copy of a game) to put on you're USB. There are two ways to obtain wii game .iso's.
Option 1. You can install a game you own via WiiFlow by pressing + on your wiimote.
Option 2. You can download a game off the Internet. There are several websites for this such as wiiiso.com, thepiratebay.com and many others. Note that if the download is a torrent file you will need a torrent client (ex. Bittorrent, Utorrent, etc.).
Step 10: Now that you have you're game (iso) you can add it to you're USB with wbfs manager and load it with WiiFlow.
You have successfully modded you're wii to play backups.
iOS 236 Installer v6: http://uploadmirrors.com/download/0Q...staller_v6.zip
Cios Installer: http://adf.ly/3E4Ml
Wad Manager: http://adf.ly/38nwQ
Cios 224: http://adf.ly/38oIB
WBFS Manager: http://adf.ly/2hQiY
*** I am not responsible for any damage done to your Wii on the rare occasion that you mess up. I would strongly suggest making a NAND backup before attempting to install any wads/cios so you can return you're Wii to it's previous state if anything goes wrong.