Installing the wrong firmware or an incomplete archive can (render it unbootable). Ensure you are matching the board number printed on the green PCB inside your TV, not just the model number on the back of the case.
Directly downloading "Part 08" of a specific RAR archive requires a link from the original hosting site, as these files are usually user-uploaded to forums or specialized firmware databases. Common Sources for TV Firmware Archives Installing the wrong firmware or an incomplete archive
Often hosts firmware for boards with these naming conventions. Installing the wrong firmware or an incomplete archive