Here's how to '''install the new IOS''' so that Animal Crossing: City Folk will work:
Use [[WUFE]], use google to find WAD-Manager, and put them on your SD card. If necessary, [[ELF to DOL Converter|convert them from .elf to .dol]].
#Use Wii Update File Extractor to dump the update partition to an SD card with 200 MB free.
#Create a folder at the root of your SD card called <tt>wad</tt>
#Move IOS38-64-v###.wad from the root into the <tt>wad</tt> folder.
#Use WAD-Manager to install IOS38 to your Wii console.
#At this point, you may be able to load the game disc through the Disc Channel. If it still displays "Wii System Update", use [[Gecko OS]] to start it.
[[Gecko OS|Gecko 1.8]] or later automates all steps of this process.
''Based on an explanation provided by Muzer in #wiihelp''