my xbox one will not let me sign in or just keeps showing a grey or black screen

I'm having the problem where my thing isn't grey its lighting up and showing me talking but no one can hear me any thoughts on that?

But Skype lets me talk just fine on the Xbox

my Xbox wont le me get past the grey loading screen. and when i disconnect the wifi and start the xbox back up, it does the splash logo and freezes on a black screen

I think that this article might be of some assistance.
Fix a black screen of death on Xbox One with these simple steps

Let me know if this helped

Keep Calm & Game On!

Someone help me i just git my xbox one i trun it on it shows the xbox one logo da green screen n it go black screen n stays on it plz email me
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I not even sure that it's the preview program at all. My screen now loads up to a blank black screen after the my games and apps logo repeatedly pops up and disappears till it finally disappears completely to a blank black screen. It only shows the logo
and none of my games and it also showed me sign in.