Xbox One S won't give a signal to my TV.

Hello there!

My name is Jonny and I will be the Independent Advisor for Microsoft assisting you today!

First, thank you so much for contacting us regarding your concern. I do look forward to resolving this problem together!

Now, I have experienced this issue myself and luckily there is a simple solution!

We are going to try resetting your resolution which will boot up the Xbox in low-resolution mode.

To do this:

Power down your console by holding the power button for 10 seconds.

Once powered down, hold the bind button and power button at the same time to power it up.

You will get one power-up chime but do not release these buttons. Listen for a second power-up chime about 10 seconds after and this will power up your console in low-resolution mode.

Once on, you can adjust the resolution to match what your TV supports.

That's the issue right there, Prezdead! My TV auto detects the resolution being put out by the source and sets it accordingly. There is no way to set my TV's HDMI input to display a certain resolution regardless of what the source is putting out. My Android
box and Roku 4 put out a 4k signal when I enable the resolution they should output is 4k. Unfortunately, The XBOX One S doesn't seem to do that.

When I do the video test on the XBOX One. My TV doesn't even flicker. It just pops up that it failed everything, which is incorrect. If I change the resolution on the XBOX One S to 720p, then it flickers and my TV changes the display to 720p. If I change
the XBOX One S to display 1080p, then the TV flickers and changes the resolution to 1080p. If I try to change the XBOX One S to display UHD, it does nothing other than go instantly to the failed screen, which states none of the options are supported. Under
Advanced Video Settings though, I have 24Hz, 50Hz, and UHD 4k checked. the problem is, the XBOX One S is putting out the 4k signal because the test says the TV fails everything and the TV will not disaply in 4k until the TV receives a signal from the XBOX
One S to display in 4k.

I have my XBOX One S plugged into the HDMI 2.0 port, as it is labeled right on the back of the TV which HDMI port supports 2.0. I do believe the HDMI mode is not selectable on my TV, which is the reason why I have yet to get my XBOX to do anything at 4k.
The TV auto-detects what it being sent to it, which is 1080p because the XBOX won't actually send out a 4k signal to make it switch.

Hmm, you keep saying it won't turn on, but then what you're describing is that it will turn on, you just aren't seeing a signal on the TV.

Is the actual core of the issue:

A. It won't power on?

or

B. It's not giving you a signal, but it's on?

This could mean something very different for troubleshooting. c

I am kind of in the same boat right now. I keep getting the 4K signal cutting out (along with audio)on me every couple minutes only lasts one or two secs then comes back. Sometimes when I restart the Xbox it won't detect the signal either. I don't know if
this is my one s or my 4K tv. All I know is none of my other consoles have this problem. But this is the first 4K device I have hooked up so.....