black screen only lets me turn off the console

If you have already checked the hdmi cables the only solution would be the offline update:

http://support.xbox.com/en-US/xbox-one/console/system-updates-solution

Yep me too. First it told me it couldn't retrieve the update, so of course I tried to turn it off and on again. Now I have a black screen that only lets me turn off the xbox or turn off the controller. And support is unresponsive.

It won’t turn on at all, it only shows a black screen and cannot be turned off when the console is powered on.

I’m having same issue have done this twice now only thing that will show after the green start up screen is black

When I press and hold home on controller it takes me to a screen that says what do you want to do

Turn off controller

Turn off console

Or restart console

That is it other then that black screen

Have reset

And changed HDMI cable

Have held the bottoms down

Have unplugged

I have done steps exactly as you have said and still nothing but black screen out side of start up green screen with Xbox logo and when I press home on controller

The xbox screen will pop up and go to black. If I hold the button on the controller, I get the option screen for turn off controller, turn off console, restart