Update 12-17-14: Sprint is useless. I have gone to the Sprint store, called Sprint and gone to the SprintCare (laughable) forum. Many people are experiencing the same issue. Sprint has no answers and won't even acknowledge the issues. I was hoping someone here may have more info. How about those of you whose phone is working properly, what carrier do you use. It may be time to switch. I can't wait forever for Sprint to figure it out.