The specific firmware part you are looking for——is typically hosted on specialized technical forums and firmware repositories for LED/LCD TV repair. Common Sources for This Firmware
Because these files are often split into multiple parts (rar volumes), you must download all parts (part1, part2, etc.) from the same source to extract the software successfully. Download MS338 PB801 1366x768 REF34 USB part5 rar
: Format your USB drive to FAT32 before copying the extracted .bin file. The specific firmware part you are looking for——is