This guide is the best way to fully modify your older Wii to safely play backup games, Ive updated a couple of things but the rest of it has been tried and tested on thousands of Wiis and is very well documented in this thread, it works on all wiis up to 4.1 regardless of serial number/region etc


To find the system menu version of your Wii click 'Wii options' in the bottom left hand corner of the Wiis main menu screen and look in the top right hand corner.
The letter after the number ie 3.4U tells you the region of your Wii, U being NTSCU, E being PAL and J being NTSCJ or Japanese.

If you are on 4.2 then do this guide by shadowsonic to modify your Wii.
If your Wii is using 4.3 then follow this guide HERE by mauifrog.

Wiis purchased in 2010, black Wiis, and Wiis with system menu 4.2 or 4.3 have the one of the new DVD drive chipsets that will not play DVDR backup discs. Game backups can still be played from a USB device such as an external USB hard disk drive or a USB Flash Drive using a USB Loader.

When completed you will have everything you need to play backups and the SD card does not have to be left in, you can delete everything off it if you wish. **the latest neogamma R8 can patch newer games to work and for this feature you need to leave the sd card in as the patches/config are stored on it**

Make sure you do the steps in the right order or you could run into problems, and read the guide through a couple of times before trying it. Read ALL OF IT! Most problems arise from people not reading the instructions properly or not using a compatible SD card, a plain 2gb one is best. If you are buying a new one try and get a Sandisk.
All you need is an SD card formatted to FAT32 (use the Full and not the Quick format option) and these files, make sure you download the correct files for your Wii's region:
American: [ Register or Signin to view external links. ]
Japan: [ Register or Signin to view external links. ]
Europe & Australia: [ Register or Signin to view external links. ]

Before you start make sure WiiConnect 24 is OFF as it can stop bannerbomb working, you may turn it back on once you have completed the guide.

If you get errors during any of the steps format your card with [ Register or Signin to view external links. ]

TAKE OUT ALL GAMECUBE MEMORY CARDS/CONTROLLERS

1. INSTALL BOOTMII AND THE HOMEBREW CHANNEL

a). Put all the files from copy to sd card.rar onto the root of the SD Card. Rar files can be extracted with WinRar, It should look like this when done (file versions may differ).

b). Insert the SD card into Wii.

c). Go to Wii Options, then go to Data Management > Channels > SD Card, then you will get a message saying "Load boot.elf?" , select 'Yes' and the Hackmii installer will run.

d). Install Bootmii as boot2 if you can using the option displayed on the menu (older Wiis only), if not available, then install it as an IOS then go back and install the Homebrew Channel.

The Homebrew channel will ask you to update - say NO! After successfully completing this softmod tutorial, you may safely accept the HBC update.

2. BACK UP YOUR NAND

Making a NAND backup with Bootmii will recover your Wii from 99.9% of bricks. Use the same SD card you used to install Bootmii and make sure there is at least 540mb free. Bootmii is very fussy about what SD cards it uses, so avoid generic ones and try and use a Sandisk or other high-quality SD card. Avoid SDHC or mini/micro SD cards as they are more problem-prone during the softmod process.

a) Put the SD card into the Wii, if you installed Bootmii as boot2 then it will load, if it is installed as an IOS go to the Homebrew Channel, press 'home' on your wiimote and select 'Launch Bootmii'.

b) Use the power/reset/eject buttons to navigate the Bootmii menu and select the icon with the gears on it. If those buttons don't work then you will have to use a Gamecube controller.

c) Now select the icon with a green arrow pointing from the chip to the SD card and follow the on screen instructions.

D) In about 15 minutes you will have a NAND backup, it is normal to have up to 80 bad blocks so don't worry if you get some.

e) Put the SD card into PC and copy the NAND backup somewhere safe, you can now delete it from your card. If you installed Bootmii as boot2 then also copy the Bootmii folder to your PC and either delete or rename it, otherwise it will load every time you switch your Wii on.


If ever you get bricked then copy the bootmii folder and NAND backup onto your card, do steps a) & b) again, using Priiloader to get to HBC if necessary, then select the icon with the arrow going from the SD card to the chip. It is not recommended to do this however, other methods to fix the Wii should be tried first and should only ever be done as a last resort.

3. GET A CIOS

a) Go to Homebrew channel and run Trucha Bug Restorer, load IOS36, press 1, read the warnings then select 'downgrade IOS15', select to load IOS from SD card then let it do its job, keep an eye on what it is doing and make sure you select 'load from sd card' when it asks & don't get any errors.

b) Run Trucha Bug Restorer again, this time select to load IOS15 on first screen using dpad left/right, then select the IOS36 menu & install patched (select 'yes' on all 3 patches) IOS36 to slot 36, again using IOS from SD card.

c) Run Trucha Bug Restorer again, load IOS36 and this time select restore IOS15.

d) Run cIOS38 r17 installer, select IOS36 as the one it should use and then select wad install.

If your Homebrew Channel flips upside down then continue with the guide and when completed reinstall the homebrew channel.


4. UPDATE YOUR SYSTEM MENU VERSION TO 4.1

Warning - If you don't install the patched IOS60 first you will brick!

a) Open Homebrew Channel and run WAD Manager, make sure the IOS it is using is IOS249.

b) Browse to your WAD folder and install IOS60Patched.wad, check that it installs with no errors and exit Wad manager, if it does error then you have permission to PM me for help

c) Run Wad manager again, check the IOS it's using is 249 then browse to your Wad folder and install SystemMenu 4.1-****.wad, checking that the **** part of the filename is the correct region for your Wii and that it installs with no errors, if you do get errors do not restart your Wii and try again until it works.

d) Exit Wad manager and restart your Wii, check the system menu version is 4.1 by going into 'Wii options' and looking in top right hand corner of screen.


5. THE FINAL STEP

Priiloader is important to protect the Wii from certain bricks. Additionally, enabling the Priiloader hacks that block both an online updates and game disc updates is important to prevent overwriting of the softmod and replacement of IOSes with nonfunctional stubbed versions.

a). Open the Homebrew Channel and load Priiloader, press + to install. After install, your Wii should reboot and load the Priiloader menu. If it doesn't, turn your Wii off and on again whilst holding down reset and it will load the Priiloader menu.

b) Select 'system menu hacks' in the Priiloader menu, and enable "Block Disc Updates" and "Block Online Updates". Select 'save settings' and wait for confirmation message to display 'settings saved'. Press B to go back, and enter Settings. Set 'Autoboot: System Menu' and 'Return:System Menu' using D-Pad, then select save settings. Press B to return to main Priiloader menu.

c) In the Priiloader menu select Homebrew Channel, run Wad Manager, use default settings (IOS249 & SD card) and install these wads from the 'wad' folder:

IOS38-64-v3867
IOS50-64-v4889
IOS53-64-v5663
IOS55-64-v5663
IOS56-64-v5662
IOS57-64-v5919
IOS58-64-v6176
Neogamma Channel - R8

Then restart your Wii.



All done! You will now have the safety/hacks of Priiloader & Bootmii, NeoGamma R8 backup loader, cIOS249 r17, IOS38,53,55,56,57 & 58 for newer games and IOS50 to help prevent disc update bricks. If you ever need to access Priiloader's settings hold down 'reset' when switching your Wii on.

If you get the 'system files corrupted' screen don't panic, just reinstall Priiloader and if that doesn't fix it reinstall your current [ Register or Signin to view external links. ] system menu[/url]

UPDATES

If you want to update your cIOS in the future or if you want to install a different one just run the installer and select ios249 as the one it should use, it will overwrite the old one so no need to uninstall.

If you want to update Neogamma go to wii options > data management > channels and delete the old one first, then just install the new one with wad manager- [ Register or Signin to view external links. ]

The Homebrew Browser allows for downloading and installation of homebrew applications and games through the Wii's Internet connection.

Install USB Loader GX & WBFS Manager 3 - [ Register or Signin to view external links. ]

To setup your USB HDD you can either use the WBFS format with a FAT32 partition or only FAT32 or NTFS. Follow one of these guides:

[ Register or Signin to view external links. ]

Get some emulators for all your old favourites (better than vc except for N64) [ Register or Signin to view external links. ]

Do not take all the credit but do take some
Credit to wiihacks.com