The most obvious cause is that the prod.keys file is simply not present in the directory where hactool is looking. hactool does not come with these keys due to copyright restrictions. 2. Incorrect File Naming
In the world of Nintendo Switch emulation and homebrew, is the gold standard for extracting files. But it is useless without its "skeleton key": the prod.keys file. If you are seeing the error "prod.keys does not exist," 🔑 The Purpose of Prod.Keys hactool prod.keys does not exist