So my screen blacks out when I make an outgoing call, disabling all hard/soft keys and touchscreen until the other party hangs up. So I have no access to menus and number pad. I can't even hang up the call. I have to wait for them to hang up. No, it's not against my face. It's sitting face up on my palm. I tried hitting all the hard keys on the side and the soft keys on the bottom. No go. Not even haptic feedback. Any ideas?