Lg Soundbar Nb4540 Software Update Jun 2026

To ensure your LG Soundbar NB4540 is running with the latest features and improvements, follow these steps to check for and install a software update:

Alternatively, press and hold the button on the remote for 5–10 seconds. The front LED display will flash the current version (e.g., “SW: 140421” or “VER 0.1.8”). lg soundbar nb4540 software update