Some TSUMV53RUUL-Z1 boards have a separate from the standard USB media port. This port uses a proprietary protocol (often via MStar's "ISP Tool" software on Windows) to flash firmware without opening the case.
Before connecting your panel, ensure the jumper on the board is set to the correct voltage for your screen (3.3V, 5V, or 12V). Setting this incorrectly can destroy your LCD panel. Match the ID: Ensure the firmware you download is specifically for the TSUMV53RUUL-Z1 tsumv53ruul-z1 firmware
Available in LQFP128 or QFN-128 configurations. Firmware Update Guide (via USB) How to update Samsung TV Firmware/Software via USB The Hidden Brain of Budget Displays: A Deep