Unzip the downloaded file and place the update file in the root directory of the USB drive (not in a folder). Update Process
firmware acts as the operating system for your audio equipment. Skipping updates can lead to performance degradation. Updating your LG NB4540 provides several key benefits: lg soundbar nb4540 software update
After updating, perform a factory reset: With the sound bar on, hold the Volume Down button on the unit until "RESET" appears on the display. This clears old cache and ensures the new firmware operates cleanly. Unzip the downloaded file and place the update
Change the function/input mode to using the remote control. Updating your LG NB4540 provides several key benefits:
Note: If the automatic update fails, you may need to use the remote to select the USB source and navigate to the update option. Troubleshooting: Subwoofer and Connection Issues
Keep both buttons pressed for roughly 5 seconds until the front LED display reads .