Every time I tried downloading the day one update, it would complete, however the Xbox would never restart. The only way I could get the Xbox to turn back on was unplugging the power cord and plugging it back in. The Xbox stays on, but that was the only way to start it up. Microsoft Support thought the issue was due to my Power Supply not maintaining power. I sent my Power Supply in on Dec 5 to be replaced, but haven't heard back. I haven't had an opportunity to try another Power Supply. I'm hoping it's not the Xbox itself because I would then have to send that in also.
Has anyone run into this issue?