Just got an HTC One a few days ago and love it. However, I can't get the screen to rotate no matter what I do. I've tried toggling the 'auto-rotate screen' option on and off and on again. Tried doing a reset. Numerous reboots... When I run G-Sensor calibration, it says 'Calibrating' for a few seconds and then says 'Calibration stopped'. Also tried booting into safe mode and get the same results. Haven't used Android since 2009ish or so, so I'm not too familiar with all the settings and such... is there a setting or switch somewhere that I'm missing? Or does this sound like a hardware issue?