The LG NB4540 soundbar can be updated to improve performance and resolve technical issues using the LG Soundbar App
Here is the official method to update your LG NB4540. lg soundbar nb4540 software update
Navigate to updates: Go to settings within the app and scroll down to locate Software Update. The LG NB4540 soundbar can be updated to
To update the software on your LG NB4540 Soundbar, you can use the LG Soundbar App for a wireless update or download files directly from the LG Product Support page for a manual USB update. How to Update Using the LG Soundbar App On the subwoofer, press the Pairing button (a
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Model: LG NB4540 (2.1 Channel 300W Sound Bar with Wireless Subwoofer)