I use my phone for a work phone and take calls all day. I use a Plantronics 5200 series headset and when I answer the phone from the headset the phone screen stays on while in my pocket, it's even upside down. The problem with this is if I go to remove the phone from my pocket to see who the call is before I answer, it will almost 100% of the time either end the call, or answer it for me. I think once since I got the phone it hasn't done it. I have had to call back so many customers or potential customers that it's getting really old. The screen even will stay on after a short call and then I can't begin to tell you how many people have gotten crazy text from me as the texting app someone gets open and then tons of garbage is written on the screen. I do like the phone but there has to be a setting that can stop this. I have the option to "Keep screen off when in a dark place" checked ON so that isn't even helping. I don't know if it does it without my headset as I use that pretty close to 100% of the time. Any thoughts anybody???