This firmware is often a "dump" file meant for a programmer (like the RT809F/H) rather than a USB update.
Can you confirm the printed on the circuit board inside your TV? generic china led tv tp.vst59s.pb813 sch - Elektrotanya Download Videocon DDBTVVKV40FH17XAH Firmware rar
You can search for the board-specific software on platforms like KenotronTV or Elektrotanya , which host files for the TP.VST59S.PB813 board commonly found in these units. This firmware is often a "dump" file meant
Some technicians share links to firmware archives in the descriptions of repair videos on YouTube . Download Videocon DDBTVVKV40FH17XAH Firmware rar