. For this specific model, updates are typically delivered via Bluetooth through your smartphone rather than direct USB manual downloads. How to Update Your LG NB4540
Remember: firmware updates fix bugs; they do not transform hardware. Your NB4540 will never support Dolby Atmos or eARC, but a successful update will make it stable enough to serve as a reliable TV speaker for years to come. lg soundbar nb4540 software update
The app will display your current version and check if a newer one is available. If an update appears, click the Update button to begin the process. Method 2: Manual Update via USB Your NB4540 will never support Dolby Atmos or
: The display should show "UPDATE" or a percentage. It will reboot automatically when finished. Troubleshooting & Maintenance Method 2: Manual Update via USB : The
: If using a remote, certain button combinations (often holding the "Settings" or "Info" button) can display the current firmware on the soundbar's front LED display. 2. How to Update Your