The following is how Amazon Prime customers activate their deviceInstall an account on the HBO Max app. Start the app , and then select hbomax/tvsignin. Choose Sign in through a TV or mobile provider Choose Prime Video Channels. Create an account using the details of your Amazon account. After logging into your account, you can begin viewing HBO Max content. It is necessary to download the Prime Video app to stream HBO on Prime Video Channels. Take these steps to follow:Subscribe to HBO at hbomax.tvsignin Download your Prime Video app on your streaming device. Go to Prime Video and choose Sign In. Forgot your password? Log in here. Register Now Through the HBO Max app, you will receive content such as Max Originals or TV favourites.