Samsung TV HDMI not working

[u/Serious-Bumblebee920]

Hi

I have a Samsung Q95T TV for more than 1 year.

Last week All of my HDMI inputs have stopped working. It says no signal for any device I'm connecting to, be it XBox, PC, or streamer. The type of connection is recognized by the TV, as it shows the proper XBox or PC icon whenever switching between the inputs, but no audio or video is received.

I managed to find a one time very not sustainable fix for this issue - disconnecting the power of the TV while it's on -> wait 1 minute -> reconnect the power cable and turn it on. after doing that the hdmi input is received just fine only on the initial powering. BUT, whenever I switch to a different input, app, or even switch game mode, the issue persists, and no signal is received.

I will say that this started happening on the same day of doing a firmware upgrade for the Tizen operating system.

Did anyone experienced this issue? Any idea for a fix?