Well i got an idea to install the Homebrewchannel on 4.0. Maybe i am very silly or clever. Anyway here is my idea: We all know: Since 3.3 Trucha Discs are not longer working. The will not start through the normal Wii Menu but for example through GeckoOS! My idea is like the CD Stream Glitch in The Legend of Zelda: The Twilight Princess. Basic idea: While playing press Home and remove the Disc and insert it again. This will the game not load all. But it still reads the Disc and will work! My idea is for Mario Kart Wii: Replace the Mario Kart Channel Wad (RevoKartNR.wad ) with the Wad of the Homebrewchannel (this idea inst from me!!! I read it in another forum). Well that will Trucha Sign the Disc. What will happen: We have 2 Discs: 1.Normal, no Trucha, no Patch or something Mario Kart Wii Disc. 2.The patche Mario Kart Wii Disc with the Homebrewchannel Wad. I think it is better to uninstall the Mario Kart Wii Channel before. At first we start the game with the normal Mario Kart Wii Disc. In the main Screen (at profil select), press Home, remove the Disc and insert the Trucha Disc with the Homebrewchannel Wad. If it works: It will read the Disc and we can install the Homebrewchannel If not: We will get an Read Error. Can someone with a Modchip and no Trucha try that?