Can't upgrade to mautic 3.02 => 4.2 from command line

Product Support
7
  1. Where did you download files for Mautic 3.0.2?
  2. What path did you give to update command, you should run this command inside mautic root directory.
  3. When you run php bin/console --version what does it say in the terminal?
  4. What does it say at the bottom of the page in the right corner? What version is shown there?