I need help....

Bought the TX6 with Android 9.0. I switch off the box but it keep causing my TV to turn on. I have ruled out the IR remote, that may be similar to my LG TV remote. The only possibility is the HDMI CEC but the tx6 setting does not have HDMI CEC control. My old TX3 with android 7 has it but this new TX6 does not have. It is very frustrating cause now i have to unplug the power from the back to ensure it does not trigger my TV to turn on.

Anyone has any suggestion. I'm closed to buying a different Tv box. Anyone want this TX6?