It's a method that works on all versions. You'll probably want to use Frogminer or Fredminer instead though, as they are newer and free. They require you to be on the latest system version, but version doesn't make a difference anymore.
You can just update to 11.9 and use Frogminer or Fredminer (the latter is easier. It's not optimal on EUR consoles, but yours is probably USA so it's good)
You can just update to 11.9 and use Frogminer or Fredminer (the latter is easier. It's not optimal on EUR consoles, but yours is probably USA so it's good)