Some HBO Max apps, including sideloaded versions, have stopped working today because HBO just released a new version of their app. The app is now displaying the “Unsupported Version” message seen above. If you have sideloaded HBO Max onto your Fire TV or Fire TV Stick, rather than updating your sideload app, it’s best for you to uninstall the app and re-install the official version, which is now available in the official Amazon Appstore. Read more ›