Today there has been a few times when I've gone to unlock the phone and it asks me for the unlock code and not taking my fingerprint. After I unlock with the code I can then use the fingerprint, like you have to do after turning the phone completely off but the thing is I haven't turned my phone off at all today. Has anyone else had this problem and do you think I need to do a factory reset? I've only had the phone ten days and haven't had any problems until today.