TCL does always publish firmware publicly on their global site. Sources:
Go to Settings (Gear Icon) > Device Preferences > About > System Update . Firmware TCL L43S6500
Smart TV optimizes hardware components, updates integrated apps, and fixes system bugs like endless boot loops. Running on the Google Android TV platform, this 43-inch Full HD television requires specific firmware structures—such as .img or .pkg files mapped to its RT41/RealTek chassis—to function smoothly. Maintaining up-to-date system software ensures a fast interface, wide application support from the Google Play Store, and correct audio decoding protocols. Technical Specifications & Firmware Structure TCL does always publish firmware publicly on their