TV not connecting to Xbox suddenly Xbox turns on but turns off on its own is not heating up...

Likely a failed power supply. It turns off when it fails to shift gears to the higher current flow

You'll have to send it in for repair, or if it's an original Xbox One replace the external power brick

Are you sure it's the 360 console turning on/off and not just the TV? If it's the TV, it's probable that the IR blasting that your Xbox One is doing to turn off its connected TV is also reaching the second TV and turning that one on and off.

TV is connected to the XBOX, XBOX turns when the TV is on or OFF its the same thing

Like I have said it is none of those it is too do with my power on/off button.

Like I have said it is none of those it is too do with my power on/off button.

If the above steps didn't do the trick and you believe it may be the power button. We'd suggest trying to power down the console and wipe down the front of the console, including the power button with a soft dry cloth. It's possible there is some debris
which is resting on the pressure point and causing this issue. If that doesn't help, your console may need to be serviced.

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