(Note: Your Wii Remote will turn off inside BootMii. You must navigate using the Power and Reset buttons on the front of the physical Wii console, or use a Nintendo GameCube controller.) 2. Navigate to the Options Menu
A standard Wii NAND dump is exactly (553,648,128 bytes). Ensure your SD card has at least this much free space before starting. Wii Nand Backup Files Download
If you haven't already, install the Homebrew Channel on your Wii. This usually involves exploiting a vulnerability in the Wii software. (Note: Your Wii Remote will turn off inside BootMii
Download official, clean system software updates directly from Nintendo's public update servers using the tool. Wii Nand Backup Files Download