Download the official TR85A81 software portable archive today, load it onto a high-speed USB 3.2 drive, and keep it in your toolkit. You never know when a legacy controller will need an urgent re-flash.
Double-click TR85A81.exe . The software will generate a settings.ini file within its own folder—not in AppData or Registry . This confirms the portable operation.
Format a USB flash drive to FAT32 . Copy the .bin file to the root directory (not inside a folder). Flash the Board: Disconnect power from the TV board. Insert the USB drive.