Xbox won't turn on properly after losing power in the middle of shutting down. Any thoughts???

Hey there PoisonPepper296!

So that we can best help out, what happens when you try to start up? Do you receive an error code or do you get stuck on a screen? Please keep us updated so that we can best help you out.

Is she properly shutting down, or just pressing the power button so it turns off?

On taking a closer look, I think the system may need the power supply to be active to maintain the "Instant On" functionality. If you go to power options and for power mode turn off "Instant On" then the power brick does indeed shut down after powering the
system off. Though you won't be able to turn the Xbox on by merely speaking those words after you do this.

So i:

Unplugged Kinect,

Held down the console power button untill the xbox turned off,

Unplugged everything and left it for 10 minutes,

Plugged it all back in APART from the Kinect....

And the machine still won't shut down properly.

Holding down the home button on the controller while the machine is refusing to shut down also has no affect, so my earlier findings were coincidental.

If i turn off the console within, say, 2 hours of it being on, it shuts down fine, but if the xbox has been on for 5+ hours, thats when the problem seems to occur.

Apart from that, everything else works perfectly.

So, TV settings are working fine. Unfortunately, a lot of the time xbox doesn't start when I turn on the controller. I then have to manually turn it on and it is apparent by the time it takes to load up that the system was completely shut down instead of
in standby. I haven't lost power as far as I can tell. Any thoughts? I just tested shutting it down and then turning on controller and it worked fine.