3 Fixes for Dolby Vision Not Working on Amazon Fire TV Stick 4K

Basic Fixes

• Use HDMI 2.1 cable: This cable supports higher frame rates, improved bandwidth, and eARC (Audio Return Channel).
• Check your streaming subscription status: Check whether the payment was processed for your account.
• Update the streaming app: Install the latest version of the streaming app in question.
• Update Fire TV OS version: Go to Settings > My Fire TV > About > Check for System Updates.

Fix 1: Check if the Title Supports Dolby Vision

Many streaming platforms like Netflix, Apple TV+, Prime Video, and more have started offering much content in Dolby Vision format. But it is also possible that the current title that you want to watch is not available in Dolby Vision. While scrolling for what to watch in streaming apps, you need to look for the Dolby Vision logo next to the title name. If it is not there, that movie or TV show is not streaming in Dolby Vision.

Fix 2: Check the Video Resolution Settings

If the title selected by you is indeed streaming in Dolby Vision, you need to check the display settings of your Fire TV Stick 4K. There’s automatic switching to Dolby Vision by your Fire TV Stick 4K when you start playing the respective content.

Step 1: Go to Settings on the home screen of your Fire TV Stick 4K.

Step 2: Select Display and Audio > Display.

Step 3: Check your video resolution set for your TV.

Sometimes, the content will stream at 1080p 60Hz for smoother playback if your TV supports Dolby Vision playback at 4K 30Hz. You can set your playback resolution to 4K 60Hz from the list of video resolutions.

Step 4: Go back, scroll down, and then select Dynamic Range Settings.

Step 5: Select Always HDR.

Fix 3: Reset Fire TV Stick 4K

You can try resetting your Fire TV Stick model to see if the problem gets solved. This step will remove all apps and settings from your Fire TV Stick 4K model.