To use DisneyPlus.com login/begin QR codes, start by opening the Disney+ app on your Smart TV or streaming device. On the login screen, you'll see a QR code along with an 8-digit code. Simply scan the QR code using your smart phones camera, which will direct you to the disneyplus.com login/begin page. Sign in with your Disney+ account credentials on your phone. After successfully logging in, the app on your TV will automatically sync and complete the login process, allowing you to start streaming your favorite shows and movies without needing to type the code manually.