If you’re a Firestick user, you may have experienced a frustrating issue where the audio and video are not in sync.
This issue, known as audio/video synchronization (AV sync) can be caused by a variety of factors, such as network speed, video quality, and even the Firestick itself.
In this article, we will explore some potential solutions to help you fix the AV sync issue on your Firestick and get your audio and video back in sync.
Check your network speed and connection
One potential cause of AV sync issues on Firestick is a slow or unstable network connection.
To check your network speed, you can use a free online tool like speedtest.net.
If your network speed is slower than the recommended speed for streaming video (at least 5 Mbps for HD quality), you may need to upgrade your internet plan or consider using a wired Ethernet connection instead of WiFi.
Additionally, make sure that your Firestick is connected to the correct WiFi network and that there are no other devices on the network that may be consuming bandwidth and causing interference.

Adjust the audio/video settings on your Firestick
Another potential solution is to adjust the audio and video settings on your Firestick. To do this, follow these steps:
- Press the Home button on your Firestick remote to go to the home screen.
- Scroll to the right and select Settings.
- Scroll down and select Display & Sounds.
- Scroll down and select Audio.
- Select Audio Language and make sure the correct language is selected.
- Scroll down and select Audio Mode. If you’re using external speakers, select Stereo. If you’re using your TV’s built-in speakers, select Surround Sound.
- Scroll down and select HDMI Audio. If you’re using an HDMI cable to connect your Firestick to your TV, make sure the correct audio format is selected.
- Scroll back up to the Display & Sounds menu and select Video.
- Scroll down and select Video Resolution. If you’re experiencing AV sync issues, try setting the resolution to a lower setting, such as 720p or 480p.
Restart your Firestick
Sometimes, a simple restart can help fix various issues on your Firestick, including AV sync. To restart your Firestick, follow these steps:
- Press the Home button on your Firestick remote to go to the home screen.
- Scroll to the right and select Settings.
- Scroll down and select My Fire TV.
- Scroll down and select Restart.
- Confirm that you want to restart your Firestick by selecting Restart.
After your Firestick has restarted, try streaming a video and see if the AV sync issue has been resolved.
Update your Firestick
Outdated software can also cause various issues on your Firestick, including AV sync. To make sure your Firestick is up to date, follow these steps:
- Press the Home button on your Firestick remote to go to the home screen.
- Scroll to the right and select Settings.
- Scroll down and select My Fire TV.
- Scroll down and select About.
- If there is an update available, you will see a message saying “Your Fire TV Stick is not running the latest software version. Update now.” Select Update to start the update process.
- Wait for the update to complete and then try streaming a video to see if the AV sync issue
Is AV Sync Important For Firestick?
Yes, AV sync is important for Firestick because it ensures that the audio and video are properly synchronized.
When the audio and video are out of sync, it can be very distracting and can ruin the viewing experience.
Therefore, it is important to try to fix AV sync issues on your Firestick to ensure that your audio and video are in sync.
How Long To Fix AV Sync For Firestick?
The amount of time it takes to fix AV sync for Firestick will depend on the underlying cause of the problem.
In some cases, the issue may be resolved quickly by adjusting the audio and video settings on your Firestick or restarting the device. In other cases, the issue may be more complex and require more time to troubleshoot and fix.
Additionally, if you need to update the software on your Firestick, the process can take some time to complete. Overall, the time it takes to fix AV sync for Firestick will vary depending on the specific situation.
Final Thoughts
In conclusion, if your Firestick is experiencing AV sync issues, there are several potential solutions you can try to fix the problem.
These solutions include checking your network speed and connection, adjusting the audio and video settings on your Firestick, restarting your Firestick, and updating the software to the latest version.
By following these steps, you should be able to resolve the AV sync issue and enjoy smooth and synchronized audio and video on your Firestick.