The safest place to get firmware is directly from the manufacturer. Visit the TCL Support Page . Enter your model number in the search bar.
If you want, I can draft the full page copy, a step‑by‑step install guide for a specific Tcl phone or TV model, or produce the downloadable table with sample firmware entries. Which would you like? Download Tcl Firmware For All Models
Place the downloaded firmware file (do not unzip unless instructions specify) into the root directory of the USB (not inside a folder). The safest place to get firmware is directly