How to Downgrade Wii 4.0U

Discussion in 'Wii - Hacking' started by MissingNo._, May 7, 2009.

  1. MissingNo._
    OP

    MissingNo._ GBAtemp Advanced Fan

    Member
    2
    Apr 12, 2009
    United States
    I've heard that there's a way to downgrade a Wii thats 4.0U if you have only the Homebrew Channel installed. But how? I've searched everywhere but I can't find it.
     
  2. Puma

    Puma GBAtemp Fan

    Member
    1
    Dec 30, 2008
    United States
    You also need a cIOS.
     
  3. MissingNo._
    OP

    MissingNo._ GBAtemp Advanced Fan

    Member
    2
    Apr 12, 2009
    United States
    Is cIOS downloaded onto the Wii or is it just some program on the SD card? And if it's downloaded on the Wii can it work on 4.0U?
     
  4. mbr013

    mbr013 Member

    Newcomer
    1
    Apr 23, 2009
    Brazil
    You can search on you tube. They got tutorial videos. I downgrade my 4.0U to 3.2U.
    But remember, all steps need to be done without errors. If you got any error, just try until you got the process work...
     
  5. PNo4

    PNo4 GBAtemp Regular

    Member
    3
    Apr 10, 2009

    http://gbatemp.net/index.php?showtopic=146735

    I stopped on step 10 though, and ran some homebrew (WiiSCU among others) to add truscha sign-bug back into a lot of IOSes.
     
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