Firmware for these motherboards is usually installed via the USB recovery method
Understanding the N.M368.818 Firmware: A Guide to Smart TV and Display Mainboard Flashing n.m368.818 firmware
Whether you are trying to recover a TV that is stuck on the boot logo, fixing a broken application error, or adapting a new replacement board to a different LCD panel resolution, flashing the correct firmware is essential. Why You Need to Update or Re-install N.M368.818 Firmware Firmware for these motherboards is usually installed via