Firestick 4K Audio Out Of Sync: A Comprehensive Guide


If you’re a fan of streaming movies and TV shows, you might have heard about the Firestick 4K. It’s one of the most popular streaming devices on the market, offering high-quality video and audio streaming. However, some users have reported an issue with the audio being out of sync. In this article, we’ll explore the possible causes of this problem and provide you with solutions to fix it.

Why is the Firestick 4K Audio Out of Sync?

There are several reasons why your Firestick 4K audio might be out of sync. The most common cause is a delay between the video and audio signals. This can happen due to various reasons, such as network connectivity issues, outdated software, or hardware malfunctioning.

Network Connectivity Issues

One of the main reasons for audio syncing issues is network connectivity problems. The Firestick 4K requires a stable internet connection to stream content without buffering. If your network connection is slow or inconsistent, it can cause delays in the audio and video signals.

Outdated Software

Another reason for audio syncing issues is outdated software. If your Firestick 4K is not running the latest software version, it can cause problems with audio syncing. Therefore, it’s essential to keep your device updated to the latest software version to avoid such issues.

Hardware Malfunctioning

If your Firestick 4K audio is still out of sync, it could be due to hardware malfunctioning. This could be caused by a faulty HDMI cable or port, or the device’s hardware may be damaged. In such cases, you need to replace the damaged hardware to fix the issue.

How to Fix Audio Syncing Issues on Firestick 4K

Now that you know the possible causes of audio syncing issues let’s explore the solutions to fix them.

Restart Your Firestick 4K

The first thing you should try is restarting your Firestick 4K. To do this, go to the home screen, select Settings, then Device, and then Restart. This will close all the running apps and refresh your device’s memory, which can help fix audio syncing issues.

Check Your Network Connection

If restarting your device doesn’t work, check your network connection. Make sure your Firestick 4K is connected to a stable internet connection. You can also try resetting your router or modem to fix network connectivity issues.

Update Your Software

If your Firestick 4K is running an outdated software version, you need to update it to the latest version. To do this, go to Settings, then My Fire TV, and then About. From there, select Check for Updates and wait for the device to download and install the latest software version.

Reset Your Firestick 4K

If none of the above solutions work, you can try resetting your Firestick 4K. To do this, go to Settings, then My Fire TV, and then Reset to Factory Defaults. This will erase all the data on your device, including apps, settings, and preferences. Therefore, make sure to back up your data before resetting your device.


In conclusion, audio syncing issues on Firestick 4K can be frustrating, but there are solutions to fix them. The most common causes of this problem are network connectivity issues, outdated software, and hardware malfunctioning. By following the solutions we’ve provided, you can fix audio syncing issues on your Firestick 4K and enjoy uninterrupted streaming of your favorite movies and TV shows.