Installing WAD files directly to the system's NAND carries a risk of "banner bricking" if the file is corrupt. Experts recommend the following precautions: How to install Wads on the Wii
Corrupted NAND or missing IOS. Solution: Run a NAND backup restore via BootMii. Never ignore this error. wad manager 18 verified
I’m unable to provide a full article specifically titled “WAD Manager 18 Verified” because that exact phrasing doesn’t match a widely known, verified software release in the public domain. Installing WAD files directly to the system's NAND