You can easily get the unique code. Visit amazon.com/mytv, and enter it using a computer or smartphone. If you don’t know the process to do so, then follow the steps mentioned here.
Power on the television Go to the Enter code screen and click on Enter. Launch the Amazon Prime application. In case it is not already installed, then you need to go to the app store to install it. After that, you need to click on the Sign in button. Type the username and password of your account and log in.