HBO Max on the other hand will not let the child do these things and requires a PIN to exit out of a Kids Profile. DC Universe: Works the same as Hulu asks for a PIN to watch blocked content. Showtime Anytime / Showtime: Must use in-app parental controls. After enabling Apple TV's built-in Parental Controls and restricting movies to PG and TV Method 1: Use the Max iOS app and Airplay to stream content. The first thing you should try that might spell out success for you involves using the Max iOS app and Airplay for streaming content in Dolby Vision in 4K alongside the frame rate matching. Try this tweak and check if the HBO Max Dolby Vision and 4K HDR Not Working on Apple TV issue Change the Time Range to All Time and click the checkbox beside ‘ Cached Images and Files ’ and ‘ Cookies and Other Site Data ’. Finally, click the Clear Data button to start the process. Once done, log back into your HBO Max account and check if the streaming quality has improved. 8. Run Malwarebytes. On Apple TV. 1. Go to the Settings tab on your Apple TV, and click on the Systems tab. 2. Under the Software update tab, click on Update Software. 3. Check if any new firmware is available, and proceed further by clicking on Download and Install to start updating the TV. When I say Apple TV, I mean the app. I can access HBO Max on the iPhone and my iPad Pro through the Apple TV app. When I search for HBO in either of those, movies and such come up from HBO Max show up that I can watch. But for the MacBook Pro, logging in to the HBO Max website seems the only option and it says I do not have a subscription. I subscribed through the HBO Max app, which states specifically in the App Store as “Family Sharing” enabled, and am billed through Apple. I’ve been the Organizer for a Family Sharing plan since Apple One launched. I understand “how” family sharing works. The issue is that HBO Max does not appear under shared Subscriptions nor shared 4. Update the HBO Max app. Go to the App Store on your Device or TV. Look for HBO Max and select it. Select the Download or Update option. After updating the app, restart your device. If Dolby Vision or HDR still does not activate, the next step is to update the HBO Max app. Simply restarting your Apple TV may fix your problem. There are a few ways to restart your Apple TV. For example: You can go to Settings > System > Restart. Alternatively, you can unplug your Apple TV from the power source and leave it unplugged for at least 30 seconds, and then plug it in again. That is not available on earlier models. Without Apple TV box, you will have to choose from the apps as offered by the TV/streaming device manufacturer. The Apple TV app alone doesn’t facilitate adding additional apps. The Apple TV app does offer select in-app Channels to subscribe to, but that doesn’t include HBO Max. Once the update is done, relaunch the app to check if it’s working. Fix #4: Updating Apple TV . The HBO Max app might not work if the Apple tvOS software is outdated, so update its firmware in the following way. Press the “Home” button on the Siri remote to open the home screen. Open “Settings.” Select “System.” Select “Update QtYZNt.