: A reliable repository for free service manuals and firmware dumps. They host the Kivi 24HK20G Chassis MSD3463 manual and related files for download.

: 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.

: Once the light stops flashing or the TV restarts, the process is finished.

Do you have the of the TV or the LCD panel inside it to ensure the firmware is compatible? USB Firmware Update for MB8x TVs | PDF - Scribd

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

: 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

Press and hold the on the TV (not the remote) and then plug the TV into the wall.