Register your device with amazon.com/mytv you need to do the following steps.

Go to Amazon official website or enter this URL in your browsers search bar, www.amazon.com/mytv After entering into the site it will ask you to login to your account. If you dont have click on add account and create a new account. After signing into your account it will ask you to enter 6 character amazon registration code. after entering your registration code, your device is registered with amazon.

(Bila tafsiri)