Typically used to recover "soft-bricked" TVs (stuck on the logo), update the Android OS, or fix resolution issues. Where to Find the Download

Installing the wrong firmware can permanently damage your TV panel or mainboard. Ensure the and Resolution match your specific hardware before attempting a USB update. TP.MS338.PB803 USB Firmware Software Bios Bin

Firmware for these Chinese universal boards is usually hosted on specialized technician forums or shared via cloud storage links: