: Since your request mentions "part03.rar," you must download all parts (e.g., part01, part02, and part03) of the archive to the same folder. You cannot extract just one part; the extraction software needs all of them to rebuild the full .bin file.
Are you currently facing a specific issue with the TV, such as it being or having a blank screen ? Downloading Firmware from a USB Device : Since your request mentions "part03
Once completed, the TV will usually restart or return to a solid standby light. You can then remove the USB drive. : Since your request mentions "part03.rar