.bin (Binary file), which is flashed directly to the TV's SPI Flash IC (usually the 25Qxx series) or via USB if the bootloader is functional.
If the TV is from a known brand using this board (e.g., SmartTech), check the official SmartTech Downloads page using your specific model number. Installation Method: Format a USB drive to FAT32 .
Copy the .bin file to the root directory (rename it to allupgrade_56bh.bin if required by the bootloader).