Press the Right arrow on your Wii remote's D-pad to do so. You can also press the + button. It's the second option on this page. Doing so will start up the WAD Manager installer. This agrees to the terms of use. Press Left until you see "IOS249" in between brackets, then press A. Select "Disable" in between the brackets and press A. Select "Wii SD Slot" in between the brackets, then press A. Doing so brings up a list of the files on the SD card that you inserted earlier. It's near the bottom of the screen. Scroll down to select USB Loader GX-UNEO_Forwarder.wad and press A. Press A when prompted to do so. This will restart the Wii. Once the Wii finishes restarting, you'll be back on the second page of the Homebrew channel.

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Write a summary of the previous text in Chinese:
导航到下一页。 选择WAD Manager。 出现提示时选择加载。 按A。 选择加载“IOS249”。 关闭模拟器。 选择SD卡。 向下滚动并选择WAD。 选择USB Loader。 安装WAD Manager。 出现提示时按任意键，然后按Home ⌂键。