Follow this sequence to deploy the software portably directly to your universal board via the USB port:
Here is a generic guide on how technicians use TR85A81 firmware via a portable USB drive. tr85a81 software portable
Always ensure your jumper settings on the board (the small plastic caps) are set to the correct voltage for your panel (3.3V, 5V, or 12V). Incorrect voltage can permanently damage your screen, regardless of the software you install. Follow this sequence to deploy the software portably