So whenever I answer an incoming call the screen goes black and none of the buttons work. I can't get back into my phone until the person hangs up. How can I stop this from happening? I can't seem to
Find any settings to change this
Sounds like either restarting your phone would be the easiest option. A factory reset will more than likely do the trick. I had an issue like this as well, only when a call came in that was listed as "private" or "anonymous" my damn phone wouldn't answer. When I tried sliding the answer icon over, it wouldn't slide. I just restarted it and so far so good.