That could have definitely caused some internal damage as well, so the sound you're hearing might be a result of the fall itself, rather than having to do with the screen; the same thing goes for the bug about the side key "fixing" the sound. I highly recommend taking your phone to a Samsung authorized service center, like uBreakiFix or Geeksquad, to further evaluate and give you an estimate on your repair.
That could have definitely caused some internal damage as well, so the sound you're hearing might be a result of the fall itself, rather than having to do with the screen; the same thing goes for the bug about the side key "fixing" the sound. I highly recommend taking your phone to a Samsung authorized service center, like uBreakiFix or Geeksquad, to further evaluate and give you an estimate on your repair.
It might be a combination of software and hardware factors. It's really hard to diagnose something like this online. Suffice it to say, I would have your phone serviced as soon as possible.
