Open the Disney+ app on your device and choose the option log in. Now visit Disneyplus.com/identity/begin on web browser in your device. You’ll be asked to enter the 8-digit activation code, This code is unique and is displayed on your TV screen. You’ll be asked to log in with your Disney+ account. After successful activation, your device is linked to your Disney+ account, and you can start streaming Disney+ content on that specific device.