Format a USB flash drive (8GB or 16GB) to FAT32 . Copy the extracted .img file directly to the root directory (not inside any folder). Installation Process: Unplug the TV from the power outlet. Insert the USB drive into the TV's USB port.
While holding the button, plug the TV back into the power outlet.
Because firmware files for these boards are large, they are often split into multiple .rar parts (e.g., .part1, .part2, .part3). To use them, you must download into the same folder on your PC.