Chosen Solution
Hi, my xbox one wont turn up anymore. Pressing the power on button u just hear the beep Sound. And you can keep pressing you will just hear the beep sound, and nothing happening. I tried cleaning it and put new thermal paste, switching the power brick with a well working one, but nothing changes.
Most likely the HHD inside has corrupted or died. This means that it will turn on and make sound but wont display. The best way to tell is turn it on, make sure your volume is up on the tv and press the Xbox button on the controller as if trying to open the menu. If you hear it open the menu, then you HHD is fine and your display made need to be checked. If you dont hear anything, replace the HHD. You will need to get a HHD that is preprogrammed with the OS though. Best of luck!