: Ensure you're using hactool correctly. The command to specify a keys file (which includes prodkeys) usually looks something like:

If hactool shows a help menu or processes without the error, you have succeeded. If you still see "prodkeys does not exist", double-check the filename and path.

If you are only performing tasks that don't require encryption (like viewing basic headers), you can often ignore this warning or use the --disablekeywarns flag.

You have several options:

: Whenever you update your console's firmware, you may need to re-dump your keys. Newer games encrypted with newer "Master Keys" will fail to decrypt if your prod.keys file is outdated.

If you do not want a permanent file, use the --keyset flag with every command: