The TV's software update takes a few minutes, so do not switch it off ... external device fixed or replaced. Check the HDMI ...

The best modern TVs come with a few HDMI 2.1 and 2.0 ports to help you connect all your devices together, but if that's not enough, or you want greater control without reaching behind the TV ...

It's worth noting that every TV manufacturer calls its CEC technology by a different name. For example, LG calls its HDMI-CEC connection by the name Simplink, Samsung refers to it as Anynet+ ...

but the TV may have only one HDMI input. In this case, a three-port HDMI switch is used with three inputs for source components and one HDMI output to the TV. When multiple TVs are used ...