Chosen Solution
I had to manually eject a disc from the Xbox. I had trouble with getting the disc out and eventual the disc came out. While i was taking the disc out the Xbox turned off. Now the Xbox will not turn back on. When I press the power it flashes on and then goes back off. I have tried many things including trying to fix the power brick. None worked. Help Please.
Maybe your Blu ray drive is broken, ask a repair shop to replace it or try it yourself. There are many tutorials on the internet. Google is your best friend.