My phone is having many many issues, and I can not get it to power off. I've held the power button down for minutes on end but it won't do anything. And to be specific, I'm not in a Rom trying to do this, I'm stuck in some sort of "grey" screen hell. If I plug into my computer, ADB recognizes it and will even pull a device number, but the phone will not respond to any command. I'm really just trying to get to the fastboot screen so I can hopefully flash the RUU.
Any help would be greatly appreciate.