: Right-click on Part 1 and select "Extract Here" using a tool like WinRAR or 7-Zip .
Note: If you only try to extract Part 5 by itself, it will fail because it is missing the preceding data. Preparing the Update Download TCL L43D2930S Firmware part5 rar
: For a multi-part RAR (e.g., firmware.part1.rar to firmware.part5.rar ), you need every single part downloaded for the extraction to work. How to Extract Multi-Part RAR Files : Right-click on Part 1 and select "Extract
: Always check the TCL Support Page first by entering your specific model number. This is the most reliable way to get genuine software. How to Extract Multi-Part RAR Files : Always
: Copy the extracted file (not the RAR files) directly to the root directory of the USB drive (do not put it in a folder).
: Insert the USB into the TV's USB port and navigate to Settings > System > System Update > Local Update .