I have a TCL 65x4us I have followed the instructions on the TCL website (
https://support.tclelectronics.com.au/software-version/ ) including the directions below.
1. Turn off the TV (power supply - unplug the power cord)
2. Insert the USB stick in USB Port 3.............Including using a USB 3.0 stick.
3. Press and hold the power button on the TV: n (not the remote control)
4. Turn on the power to the TV (while pressing the power button)
5. After approximately ten seconds, you see the upgrade message on the TV as soon as you see this, release the power switch.
I have tried at least 20 different combinations of using different sticks/ports, the latest version as well as a few versions going back and all I seem to ever get is the android with a red triangle. Tv starts back up fine after but never updates. Anyone experience the same and/or have any suggestions?
Cheers in advance.