When i dial a number everthing's fine but once i hit send the screen goes black and i can't hang up. I can still talk like this which is ok if i have a person on the other end of the phone but as soon as you call something automated like a help line, information or just get voice mail you have to remove the battery to end the call. I love everything else about this phone. I have tried all updates which i was assured would work i tried tha master reset and that got me nowhere as well. SOMEBODY HELP PLEASE.