: In the root directory of your USB drive, create a new folder and name it exactly LG_DTV (case-sensitive).
: Unzip or extract the downloaded firmware file on your computer. Inside, you will typically find a file with a .epk or .bin extension.
: With the TV powered on, plug the USB drive into the USB IN port on the side or back of the TV.
in the search bar to find the specific support page for your model.