T.MS638.733 is a popular universal Android smart LED TV motherboard. Updating its firmware is typically done via a USB flash drive. Pre-Installation Requirements
Installing the wrong firmware (e.g., for a different screen resolution or panel type) can permanently "brick" your TV or result in a flipped/distorted image. Always verify your specific panel number before flashing. specific version of this firmware for a particular TV brand? T.MS638.733-ULTRA-HD-SMART TV-FIRMWARE - Facebook t.ms638.733 firmware