So this scenario just happened to me. I can turn the Xbox on with the controller, which has a full charge, however; one the xbox is on the controller is completely unresponsive. The light is still on and solid, the buttons, home button, and joysticks do not work. I restarted the xbox by using the power button on the console, and took out the controller batteries, that didn't fix it. Ended up having to unplug the power source from the xbox, plugged it back in, started the xbox and everything works as it should now. Anyone have this issue before? Is there an update for this I'm missing?