For further assistance or to find missing parts, you can check specialized technical forums like Kazmi Elecom which frequently hosts these multi-part firmware files.
Open your extraction software (highly recommended: WinRAR or 7-Zip ).
: Once finished, you should have a single folder or a single .bin file (the actual firmware) ready to be loaded onto a USB drive for the TV update. Firmware Details for TP.SK508.PB801