Follow the step-by-step instruction on how to update the software on your TCL Android TV:

1. Press the Home button on the TCL Android TV remote control to display the Home screen.
2. Use the navigation button to move the cursor to the Settings icon, located on the right top of the screen, then press OK
3. Scroll and select More Settings
4. Scroll and select Device Preferences
5. Scroll and select About 
6. Scroll and select System Update 
7. The Software Update pop-up box will display, select Network Update
8. The TV will search for an available software update, once prompted, click OK to confirm.