Visit the app store on your phone and look for the NFL official NFL.com activate code

Once it is installed, start it up to your phone.

Sign-in is available located in the top-right corner on the app's display.

You can either first create an account , and then sign in or login using your credentials from your current NFL account.

If the login succeeds Once the login is successful, you will be able to log in and your NFL Network will be activated on your phone.