If you tried every step in that article it says here in what to do next....
Contact Apple Support to set up service if you have any of these issues:
- You still see a black screen after charging, force restarting, or following the steps in this article.
- You see a black screen, but can hear alerts, sounds, and vibrations.
- Your screen is on, but it doesn't respond to when you tap, slide, or try other gestures.
- You can't force your device to restart because your Home button or Sleep/Wake button is broken or stuck.
- Your device is stuck on the Apple logo, displays a solid color, or isn't recognized in iTunes.
If you can't get it to respond, make an appointment at an Apple Store Genius bar and ask for help.
http://www.apple.com/retail/geniusbar/