: If your TV cannot connect to the internet, you must obtain the official firmware from TCL support.
Instead of using unverified split .rar files, use these official methods to ensure your hardware isn't damaged: Download TCL LED40S4900 Firmware part3 rar
: Compressed files from unofficial sources may contain malicious software. How to Update TCL Tv by USB : If your TV cannot connect to the
Using files like "part3.rar" from unofficial forums or file-sharing sites is dangerous for several reasons: Download TCL LED40S4900 Firmware part3 rar