Xbox shuts off after a few hours?

As long as you see it shut off after a few hours it should be fine. I had one where it didn't shut off and the battery became quite warm. RMA'ed it and it was fine afterward.

That appeared to be temporary at best. When I tried to go to the My Apps and Games menu, it was blank and I couldn't get it to switch back to TV. This was only about 5-10 minutes after the successful reboot. I tried the power supply reset. No good.
Now there's something really weird. The amber light is on the power supply despite it not being plugged in to either the wall or the Xbox.

I tried both suggestions. I tried the reset, on the console, but I'm not sure anything happened since the light was off the whole time. The console had been off for a while, so it wasn't warm, but I blew out the dust with an air can. I also did the
power supply reset. It booted, but it ended up in a frozen state. I got the "Hi" message with my name and then got an incomplete screen. I could see the name of the last game I played, but no image. Trying to access the menu from a button on the controller
just dimmed the screen. Pressing again undimmed the screen.

I powered off again and the problem occurred again. I only did the power supply reset and also plugged into a different outlet. Now it booted normally. I haven't tried playing a game, but I can now watch cable TV through the HDMI pass through

Your Xbox is probably overheating. It will be good to clean it at least from dust. Either give him a cleanup or service.

Hey Carl,

Thank you for reaching out. If you haven't already, please check out our
Power Supply solution for some quick and easy troubleshooting steps. If you are able to get it back on and are still experiencing those freezing issues, look into performing a

factory reset while keeping your games and apps. Let us know how it goes!