Roku TVs update automatically over the internet. Manual firmware is rarely needed, but here is the official portal:
Here is a comprehensive guide on how to locate and download the official firmware for your device. Understanding TCL Firmware Versions link download tcl firmware for all models
TCL produces hundreds of models (S series, P series, C series, X series) with different chipsets (Realtek, MStar, MediaTek, Novatek). Using the wrong firmware can . Always download based on your exact Model Number and Software Version . Roku TVs update automatically over the internet