If you have downloaded the multi-part RAR files (Part 01–09) for a manual update, follow these steps to prepare and install:
Provides latest security updates to keep your smart TV protected. Download TCL LED49S4900 Firmware part01 part09 rar
The TV will automatically upgrade the software, which may take about before restarting. If you have downloaded the multi-part RAR files
While holding the button, plug the TV back in. Release the button once you see a blinking LED or the update interface appearing. Download TCL LED49S4900 Firmware part01 part09 rar