| Method | Command / Action | |--------|------------------| | | Put prod.keys in the folder containing hactool.exe (Windows) or the hactool binary (macOS/Linux). | | Current working dir | Open a terminal in the folder where prod.keys is located, then run hactool . | | Specify path manually | Use the --keyset flag: hactool --keyset=./path/to/prod.keys myfile.nsp |
Without prod.keys , hactool cannot decrypt anything. When hactool launches, it looks for this file in a default location. If it doesn’t find it, it throws the error: prod.keys does not exist .
: Ensure your file is not named prod.keys.txt . In Windows, go to View > File name extensions to verify. 3. Command Line Syntax