Lg Soundbar Nb4540 Software Update Site

Open the app on your phone and follow the on-screen prompts to pair with the NB4540. Check for Updates In the app, navigate to Software Update

If you encounter any issues during the update process, refer to your soundbar’s user manual or contact LG customer support for assistance." lg soundbar nb4540 software update

Updating the soundbar software is typically managed via the LG Soundbar app Open the app on your phone and follow

If you are troubleshooting and need to verify your version, you can generally do so through a manual button sequence on the unit: Set the soundbar to (even if no USB is inserted). lg soundbar nb4540 software update

Last updated: May 2026