How to Update Soundbar Firmware

A soundbar firmware update can fix HDMI ARC or eARC handshakes, app-control problems, audio dropouts, Bluetooth behavior, and compatibility with newer TVs. It can also introduce a reset of settings or require the TV and soundbar to reconnect afterward. The safest approach is to identify the update method your manufacturer supports, protect the power connection, and confirm operation when it finishes.

Before you start

Find the soundbar model number on its rear label, underside, box, or companion app. Firmware files and instructions are model-specific; never install a file intended for a similar-looking model. If your soundbar is working normally and the manufacturer does not list a fix relevant to you, an update is optional. If the update notes mention HDMI compatibility, stability, audio formats, or a problem you have, updating is reasonable.

Before beginning, write down custom settings such as subwoofer level, surround mode, Bluetooth pairings, Wi-Fi details, and HDMI input assignments. Some updates preserve these settings, while others reset them.

1. Use the manufacturer app when available

For many current soundbars, the companion app is the easiest and safest route. Connect the soundbar to your home network, open the manufacturer app, and look for Device settings, Support, About, or Software update. The exact name varies.

Keep your phone on the same home network, leave the soundbar powered on, and do not close the app until it reports completion. An update may take several minutes and the soundbar can restart more than once. A dark display or a temporary loss of audio during the process is not automatically a failure.

2. Update through Wi-Fi or the soundbar menu

Some models can check for firmware directly from their own settings menu. On the remote, look for Settings, Setup, System, or Information, then choose software update or check for update. Connect to a stable network first. Avoid starting an update when your router is restarting or your home internet is unreliable.

If the soundbar says it is already up to date, do not repeatedly force the process. Instead, note the installed version and compare it with the version listed on the manufacturer’s support page for your exact model.

3. Use a USB update only when the manufacturer instructs you to

A USB update is common on older models and is useful when the soundbar cannot connect to Wi-Fi. Download the firmware only from the manufacturer’s official support page. Read the included instructions carefully: some files must remain zipped, while others must be extracted to the root level of a FAT32-formatted USB drive. Do not rename the update file unless the manufacturer tells you to.

Turn the soundbar on, insert the drive into its designated USB or service port, and wait. The display may show an update indicator, restart, or remain quiet while the process runs. Do not remove the drive or unplug the unit until the instructions say the update is complete. Interrupting power during a firmware write can leave the soundbar unable to start.

4. Protect the power and HDMI connection

Use a reliable wall outlet or surge protector. Do not update during an electrical storm, while moving cables, or when the soundbar’s plug is loose. Leave the HDMI cable in place unless the manufacturer specifically directs otherwise. After a completed update, power the TV and soundbar off for about 60 seconds, then turn on the TV first and the soundbar second. This gives ARC or eARC a fresh handshake.

If you need a replacement drive or a spare cable for troubleshooting, see USB flash-drive options or certified HDMI cable options.

5. Confirm the update worked

Reopen the app or the soundbar’s information menu and compare the displayed firmware version with the version you intended to install. Then test the functions most important to your setup:

• Play sound from a built-in TV app such as YouTube or Netflix.
• Switch to an external HDMI source, such as a cable box or streaming device.
• Raise and lower volume with the TV remote if you use HDMI-CEC.
• Check whether the TV still identifies the soundbar as its audio output.

If audio is missing after the update, select the soundbar again in the TV’s audio-output menu. For ARC or eARC, confirm that the HDMI cable is still connected to the labeled ARC/eARC port on both devices and that CEC is enabled when your brand requires it. For further setup guidance, read Soundbar Works With a Cable Box but Not TV Apps? Fix the Audio.

When an update fails

First, give it more time than you expect. Many soundbars take five to fifteen minutes and may restart silently. If the display remains frozen well beyond the manufacturer’s stated time, consult that model’s recovery instructions before trying random button combinations. Do not repeatedly unplug it during an active update.

If the app cannot find the soundbar, restart the phone, router, and soundbar, then reconnect the app. If the soundbar has no network connection, use the official USB procedure if supported. Contact the manufacturer with the model number, installed firmware version, and exactly what the soundbar display shows.

FAQ

How long does a soundbar firmware update take?

Most updates take a few minutes, but allow at least 15 minutes before deciding that the process has stalled. Check the manufacturer’s instructions for your exact model.

Will a firmware update erase my soundbar settings?

Often it does not, but it can. Record your Wi-Fi information, sound mode, subwoofer level, and Bluetooth pairings first so they can be restored quickly.

Can I update any soundbar with a USB drive?

No. Use USB only if your soundbar’s official support instructions list it as an update method. Some USB ports are for music playback or power only.

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