The TCL L43D2930S is a 43-inch Smart LED TV that occasionally requires firmware updates to resolve software glitches, boot loops, or app compatibility issues. Firmware for this model is often distributed in multi-part RAR archives due to file size. Technical Overview TCL L43D2930S

You must download all parts (Part 1, Part 2, Part 3, and Part 4 ) before extracting.

If Part 4 is missing or corrupted, the extraction will fail. Ensure all parts are the same byte size (except the last one). If you need to find the download link:

Plug the TV back into the power source while continuing to hold the button.