Technical Overview: Set-Top Box Firmware Upgrade Processes and Version 4.0.2
: The most common method. You download the firmware file from the manufacturer's site, put it on a flash drive, and navigate to Settings > Software/Firmware Update on your TV. OTA (Over-the-Air) Stb Upgrade Ver 4.0.2 Download
: Options for "Software Upgrade" or "Data Dump" (to backup existing firmware). put it on a flash drive
: The box downloads the update automatically via your satellite signal or internet connection. STB-to-STB Stb Upgrade Ver 4.0.2 Download
To find the correct file, you generally need the .bin or .abs file format.