black screen

You need to contact Apple about this. Copied and pasted from the last part of this article.

If your iPhone, iPad, or iPod touch won't turn on - Apple Support

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.

Bold type is my emphasis.

i see a black screen, but you can hear alerts, sounds, and vibrations.

That indicates to me that you have a hardware problem. You should take your device to an Apple Store or an authorized service center and have them take a look.

me too but its with ipad air how to fix?😟