: Ensure the USB is formatted to FAT32 and the file is not inside a folder.
If your TV is working but you want to ensure it has the latest features, use the TCL Support or Lloyd standard procedure: Press on your remote. Navigate to Settings (usually a gear icon). Go to Device Preferences or About . Select System Update or Software Update . 3rt841b firmware upd
: Ensure the USB is formatted to FAT32 and the file is not inside a folder.
If your TV is working but you want to ensure it has the latest features, use the TCL Support or Lloyd standard procedure: Press on your remote. Navigate to Settings (usually a gear icon). Go to Device Preferences or About . Select System Update or Software Update .