
if you have any other questions, i can certainly try my hand at answering them! I've had a few phones go down this way ;>>
edit: after rereading the thread, it DEFINITELY seems like a touch screen failure. my husband's touchscreen laptop screen went out recently, and sometimes fragments can be stuck pressed down, so it'll register taptic feedback but it's trying to process the extra info, all while you can't see anything because the screen itself isn't displaying data -_- my husband's laptop now has to be half-folded down while he uses an external monitor ^^; not really an option for a phone, but paying to replace the screen isn't as much of a hassle as it can seem. I'd suggest trying the Geek Squad or something like that where they give you a guarantee if it doesn't fix it.