Insert the USB into the TV and navigate to > System Update > Local Update . Risks of Third-Party Firmware
Instead of using unverified split .rar files, use these official methods to ensure your hardware isn't damaged: Download TCL LED40S4900 Firmware part3 rar
: Use the built-in system update tool to download the latest software directly from TCL. Navigate to Settings > Device Preferences > About . Select System Update and then Network Update . Insert the USB into the TV and navigate
: Firmware varies by region and chassis version (e.g., RT51A). Installing the wrong version can cause panel errors or permanent damage. Select System Update and then Network Update
: If your TV cannot connect to the internet, you must obtain the official firmware from TCL support.
: Compressed files from unofficial sources may contain malicious software. How to Update TCL Tv by USB