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.
To uninstall the sideloaded HBO Max app, follow these instructions. Once the app is uninstalled, either send the official HBO Max app from Amazon’s website to your Fire TV, or search for HBO Max on your Fire TV and install it that way. If you already have the official version of HBO Max on your Fire TV and are seeing the “Unsupported Version” message, then you need to update the app through the Amazon Appstore by following these instructions. If you don’t want or can’t get the official version from the Amazon Appstore, then you can sideload the latest version by following this guide and entering