Click Check for update . If an update is available, you will see a prompt with version details and file size (e.g., 800 MB).
Go to Settings > Device Preferences > About > System Update . Tcl 55c2us Firmware Update
After installation (10–20 minutes), the TV will reboot to the home screen. Go back to About to confirm the new version. Click Check for update
Ensure your TV is connected to a stable Wi-Fi network (avoid mobile hotspots). 800 MB). Go to Settings >