If you encounter any issues during the update process:
The app will display your current version and notify you if a new version is available. : If an update is found, tap lg soundbar nb4540 software update
: Go to settings within the app and scroll down to locate Software Update . If you encounter any issues during the update
Press and hold the button on the soundbar remote control for a few seconds until the soundbar display shows "REMOTE PAIRING" or a similar pairing prompt. The is a maintenance task that can breathe
The is a maintenance task that can breathe new life into an older home theater system. While the USB method requires a bit of tech-savviness, it is far safer than relying on the Bluetooth app. Always verify your current firmware, download only from official or verified sources, and follow the step-by-step process without rushing.
Once the update hits 100%, the display will usually show or "SUCCESS" . The soundbar will automatically turn off and turn back on. Unplug the USB flash drive.
Updates ensure the soundbar works seamlessly with modern, upgraded firmware on newer smart TVs. How to Update the LG NB4540 Soundbar Software