Lg Soundbar Nb4540 Software Update Upd Jun 2026

Note: The NB4540 is an older model, so the server support for "Push" updates may have been discontinued. Method 1 (USB) is highly recommended.

Once your software is updated, you can further enhance your listening experience: lg soundbar nb4540 software update

Insert the USB drive into the USB port on the back or side of the unit. Turn the soundbar . The display should read "FILE CHECK" followed by "UPGRADE." Wait for the progress percentage to reach 100%. Note: The NB4540 is an older model, so

Before proceeding, please note the following critical points: Turn the soundbar

Having trouble finding the file on LG’s website? Check the "Manuals & Downloads" section for the NB4540. If only Windows drivers appear, run the .exe file—it simply writes the firmware to your USB.

Repeat the instructions in to verify that the firmware version numbers now match the new version you downloaded.