I have noticed another issues on my unbranded HTC One since the 4.4.2 update. It appears to charge intermittently. When I plug the jack in sometimes the battery icon changes to charging and the little red light comes on but then it will stop charging before it gets to full. Also sometimes when I plug the jack in it doesnt start to charge at all. I don't think it's a physical hardware issue because if I switch the phone off it will charge without issue. Has to be software...