TV Has No Sound After Screen Mirroring

Screen mirroring is one of the easiest ways to enjoy videos, photos, games, presentations, and apps from your smartphone, tablet, or computer on a larger TV screen. Whether you own an LG, Samsung, Sony, TCL, Hisense, Vizio, Philips, Roku TV, Fire TV, or Android TV, screen mirroring usually works with just a few taps. However, one common issue many users experience is that the picture appears correctly on the television, but there is no sound.

Sometimes the audio is still playing through your phone or laptop instead of the TV. In other cases, incorrect TV settings, outdated software, Bluetooth devices, or incompatible apps can prevent audio from being transferred during screen mirroring.

In this guide, I will explain several methods to restore sound after screen mirroring. 

Note: These solutions work for most modern smart TVs, including LG, Sony, Samsung, TCL, Hisense, Roku TV, Fire TV, Android TV, and Google TV, along with Android phones, iPhones, Windows PCs, and Mac computers.

TV Has No Sound After Screen Mirroring [Try These Steps]

If your TV displays the mirrored content but produces no audio, do not assume your television is damaged. In most situations, the problem is caused by an incorrect audio output, a temporary software glitch, or a screen mirroring setting. 

Follow the steps below in order. After completing each step, try playing a video again to see whether the sound has returned.

Step 1: Make Sure the TV Volume Is Turned Up

The first thing to check is the simplest one. Sometimes the TV volume may be muted or set extremely low. During screen mirroring, your TV still relies on its own speakers unless you are using an external audio device.

Using your TV remote, press the Volume Up button several times. Then press the Mute button once to make sure mute is turned off.

If your TV is connected to a soundbar or home theater system, verify that the external audio device is powered on and that its volume is also raised.

For LG, Samsung, Sony, TCL, and most other smart TVs, you should also open the Sound or Audio settings menu and confirm that the correct speaker option is selected. If the TV is using external speakers that are disconnected, no sound may be heard.

Once you confirm the volume settings, test screen mirroring again.

Step 2: Restart Both the TV and Your Device

Temporary software glitches are one of the most common causes of missing audio during screen mirroring.

Turn off your TV completely using the remote. Then unplug the TV from the electrical outlet for about one minute. This clears temporary memory and refreshes the operating system.

Next, restart the device you’re mirroring from. Whether you are using an Android phone, iPhone, Windows laptop, or Mac, a simple restart can resolve communication issues between the device and the TV.

After both devices restart, reconnect screen mirroring and play a video with sound.

Many users find that this simple restart restores audio immediately.

Step 3: Disconnect and Reconnect Screen Mirroring

Sometimes the wireless connection is established only for video, while the audio connection fails.

Stop screen mirroring completely from your phone, tablet, or computer.

Wait about thirty seconds before starting a new screen mirroring session.

On Android devices, disconnect Smart View, Cast, or Wireless Display, depending on your device.

On iPhones, stop AirPlay or Screen Mirroring and reconnect it.

On Windows computers, disconnect the wireless display by pressing Windows + K, selecting the connected TV, and choosing Disconnect before reconnecting.

Creating a fresh connection often restores both video and sound.

Step 4: Verify the Audio Output on Your Phone or Computer

Your device may still be sending sound to its own speakers, headphones, or Bluetooth earbuds instead of the TV.

On Android phones, increase the media volume and make sure Bluetooth headphones are disconnected.

On iPhones, open Control Center and check the current audio output. If audio is playing through AirPods or another speaker, switch it to the TV.

On Windows, right-click the Speaker icon in the taskbar and open Sound Settings. Under Output, choose your TV if it appears in the list.

On a Mac, open System Settings, select Sound, and choose the mirrored TV as the audio output if available.

Selecting the proper output device ensures that audio is transmitted to the television instead of another connected device.

Step 5: Check the TV Sound Settings

Incorrect sound settings on the television can also prevent audio from playing.

Open the Settings menu on your TV and navigate to Sound or Audio.

Verify that TV Speakers are enabled.

If your television supports multiple output modes, temporarily disable Bluetooth Audio, Optical Audio, or HDMI ARC if you are not using those devices.

Some TVs automatically remember previously connected audio equipment. If that equipment is unavailable, the TV may continue trying to send sound there instead of its internal speakers.

After making changes, restart the mirrored connection and test the sound again.

Step 6: Disconnect Bluetooth Audio Devices

Many smartphones automatically reconnect to Bluetooth headphones or speakers.

Even if your TV displays the mirrored picture, your phone may still send sound to wireless earbuds.

Open the Bluetooth settings on your phone or computer and disconnect any connected headphones, earbuds, portable speakers, or smart speakers.

Once disconnected, reconnect screen mirroring and check whether the TV speakers begin working.

This is one of the most overlooked causes of missing audio.

Step 7: Update Your TV Software

Older TV software versions sometimes contain bugs affecting wireless connectivity and audio transmission.

Open your TV’s Settings menu.

Go to Support, System, Device Preferences, or Software Update, depending on your TV brand.

Search for available updates and install the latest version.

The exact location varies between LG webOS, Samsung Tizen, Sony Google TV, TCL Google TV, Roku TV, and other operating systems, but nearly every smart TV includes a software update option.

Allow the installation to finish completely before reconnecting screen mirroring.

Updated software often improves compatibility with newer smartphones and computers.

Step 8: Update Your Phone or Computer

Your phone or laptop software also plays an important role.

Install the latest operating system updates on your Android phone, iPhone, Windows PC, or Mac.

Software updates frequently include improvements for WiFi connectivity, wireless display support, AirPlay, and audio compatibility.

After updating, restart your device before attempting screen mirroring again.

Step 9: Test With a Different App

Some streaming apps intentionally restrict audio or video during screen mirroring because of Digital Rights Management, also known as DRM.

If you’re experiencing no sound only in one app, open another application such as YouTube or play a locally stored video.

If sound works correctly in other apps, the issue is likely caused by the original application’s content protection rather than your TV.

In this situation, using the app directly on your smart TV usually provides the best experience.

Step 10: Check Your WiFi Connection

Screen mirroring depends on a stable wireless network.

If your WiFi signal is weak or unstable, audio packets may fail even though video continues to display.

Move your phone or computer closer to the wireless router.

Restart the router if necessary.

Make sure both your TV and your device are connected to the same WiFi network.

Avoid using guest networks or different frequency bands if your screen mirroring technology requires both devices to be on the same network.

Improving network quality often restores reliable audio transmission.

Step 11: Reset the TV Sound Settings

If you’ve changed several sound options over time, restoring the default sound configuration may solve the problem.

• Open the TV settings.
• Navigate to the Sound menu.
• Locate the option to Reset Sound Settings or Restore Default Audio Settings.
• Confirm the reset.

This process affects only the audio settings and does not erase your installed apps or personal data.

Reconnect screen mirroring and test the sound again.

Step 12: Factory Reset the TV as a Last Resort

If none of the previous methods work, a complete factory reset may eliminate software issues causing the missing audio.

• Open the TV settings menu.
• Find General, System, or Device Preferences, depending on your TV model.
• Choose Factory Reset or Reset TV.
• Follow the on-screen instructions to complete the reset.
• After setup finishes, reconnect your WiFi network, sign back into your apps, and test screen mirroring again.

Because this removes personalized settings, it should only be performed after trying every other solution.

FAQs

Why does my TV show the picture but no sound during screen mirroring?

This usually happens because the audio output is still set to your phone, laptop, Bluetooth headphones, or another external speaker. Restarting both devices and reconnecting screen mirroring often resolves the issue.

Does this guide work for LG, Samsung, Sony, TCL, and other TV brands?

Yes. These troubleshooting steps work for most modern smart TVs, including LG, Samsung, Sony, TCL, Hisense, Vizio, Philips, Roku TV, Fire TV, and Android TV models.

Why does YouTube have sound but another streaming app does not?

Some streaming services use DRM protection, which can limit or disable audio during screen mirroring. If other apps work normally, the issue is likely related to the specific app rather than your television.

Can Bluetooth headphones prevent TV sound?

Yes. If your phone or computer is connected to Bluetooth headphones or earbuds, audio may continue playing through them instead of the TV. Disconnect the Bluetooth device and reconnect screen mirroring.

Should I update my TV software?

Yes. Keeping your TV and your phone or computer updated improves compatibility, fixes known bugs, and enhances screen mirroring performance.

Is a factory reset always necessary?

No. Most users restore sound by checking the audio output, restarting their devices, reconnecting screen mirroring, or updating their software. A factory reset should only be used if every other solution has failed.

Summary

If your TV has no sound after screen mirroring, the issue is usually related to audio output settings, Bluetooth connections, temporary software glitches, network problems, or outdated software rather than a hardware failure. By checking the TV volume, restarting both devices, reconnecting the screen mirroring session, selecting the correct audio output, reviewing the TV’s sound settings, disconnecting Bluetooth devices, updating your software, and ensuring a stable WiFi connection, you can resolve the problem in most cases. 

These solutions are suitable for LG, Sony, Samsung, TCL, Hisense, Roku TV, Fire TV, Android TV, Google TV, and many other smart televisions, helping you enjoy both video and sound without interruption.