Not staying on

I used to be going to incorporate a video however doesn’t let me. I am going to show the Xbox on and the sunshine comes on briefly after which turns its self off. I’ve appeared it up on-line and tried about all of the strategies I may discover (plugging right into a diff. energy supply, unplugging for 40 sec/min, tried resetting it & it received’t). I simply performed it final week so I do know it could work, simply unsure why the entire sudden, it determined to not activate utterly. Some other recommendation/ideas?