Creating a backup is generally safe because the process only reads data from the NAND and writes it to an SD card. The real danger, which we'll discuss later, is during a restore, as it writes data back onto the console.
In case you need to restore your Wii from a NAND backup: Wii Nand Backup Files Download
), and anyone else with that same NAND cheats, the entire console ID will be banned globally. How to Create Your Own Backup Creating a backup is generally safe because the
If your Wii is already bricked and you do not have a pre-existing NAND backup, do not panic. You still have options that do not involve downloading unsafe files from the web. Scenario A: You Have BootMii Installed as boot2 which we'll discuss later