Chosen Solution
I would unplug everything plug it back turn it on to safe mode and it still does not show a display I’ve tried some other stuff and I’m very stuck any ideas?
Always start with the easiest repair first. Try another HDMI cord. Plug in into a different HDMI port on the TV, Check the TV settings and make sure the HDMI ports are active (I can rename the ports to what I have connected to them i.e. PS3, PS4, PS5, 4KFVD and so on,) Hope it is this simple for you.