Download Tcl Led43s4900 Firmware Part06 Rar -

Connect your TV to Wi-Fi, then navigate to Settings > Device Preferences > About > System Update > Network Update .

Press and hold the physical power button on the TV (not the remote). While holding it, plug the TV back in.

Right-click part01.rar and select "Extract Here" using a tool like WinRAR or 7-Zip . This will automatically combine all parts into a single firmware file, typically ending in .pkg , .img , or .bin .