: If the specific .rar file name is from a guide, it is likely hosted on tech blogs or YouTube descriptions specialized in "Universal Board" software. How to Install the Firmware

Once you have the correct .bin file (usually extracted from the .rar ), the general update process is as follows:

: Place the firmware file (often named allupgrade_3463_8G.bin or similar) into the root directory of the USB. Flash the TV : Turn off the TV power completely. Insert the USB into the TV's USB port.