If your TV is running fine and all apps work, you can skip minor updates. However, if you experience any of the following, an update is recommended:
: Recent major updates across the TCL lineup have introduced features like HDMI 2.1 QMS
Semp Toshiba Tcl 65c2us Ns: 940004 - Update Link Provided Instantly
Download the specific firmware .zip or .pkg file (often sourced from TCL support or community forums like XDA or Geekzone ) and place it in the root directory.
A: Usually not. OTA updates preserve data. USB/forced updates often wipe data. Always assume a USB install will factory reset the TV.
After completion, remove the USB drive and verify the new version in Settings.