A weird thing happened in the early hours of this morning, my HTC desire turned itself on. I always turn my phone off at night, but in the early hours of this morning I thought I heard my phone vibrate. I thought nothing more of it until I came to turn my phone on this morning and discovered it was already on and at the SIM Pin entry screen. Has my phone gone crazy? Is there a legitimate reason why my phone might do this? I haven't changed any settings or downloaded any apps recently.