Hue in Camera While taking pictures from HTC One the users experienced blue, red and purple hue and Android 4.3 update failed to resolve the issue. Buzzing sound while speaking on the phone Some users also experienced buzzing sound in the phone while listening to an audio. HTC One speakers and headphone gave a perpetual hiss sound when the audio was turned off. Quality issues Some of HTC one units had gaps between plastic metal, scratches and bulges. Home and Back keys The Home and Back keys of HTC one sometimes became unresponsive. Sensor issues A few units of HTC One also suffered sensor malfunction issues Battery drain Certain phone units even face unique battery drain issues So here are the problems users faced with HTC one, we HTC One 2 will come sans such issues.