Using files like "part3.rar" from unofficial forums or file-sharing sites is dangerous for several reasons:
Copy the provided .bin or Update.img file to the root directory of the USB drive. Download TCL LED40S4900 Firmware part3 rar
: If one part of a multi-part archive is missing or corrupt, the firmware will not install, or worse, could brick your TV . Using files like "part3
: Compressed files from unofficial sources may contain malicious software. How to Update TCL Tv by USB the firmware will not install
Insert the USB into the TV and navigate to > System Update > Local Update . Risks of Third-Party Firmware