I received an ipad mini 2 months ago as a giveaway at a computer company luncheon. It is my 4th ipad & 1st mini. Two nights ago, I noticed the back right side (left side if looking at the back) was hot and the device was not responsive. Charging or resetting using the dual-button process made no difference in status. I was wondering if anyone knows if a device "won" new at a computer show or luncheon is still covered by warranty?