3: Dialer. This is related to issue #2 but I'm listing it separately because it's very important. The issue was exacerbated in December when I was with a friend in Target, he passed out, hit his head extremely hard on a counter and someone had to call 911. The ambulance took him away and I had to call his family and let them know what happened. His mom didn't pick up but called me back a minute later and the DAMN PHONE WOULDN'T LET ME ANSWER! It was ringing but had a blank screen... then the screen came up but wouldn't let me swipe the green 'answer' tab and I had to miss the call. I was so frustrated. What if I had to call 911 and my phone locked up? Every second counts when someone needs medical assistance.