How to restart S7 Edge when NO button work

[Android Central Question]

I have my Galaxy S7 Edge.
The Screen turned black.
The button's lights are on.
No button response.
I can't use the phone can't even go to Recovery/Download mode since the buttons not responding

 

[B. Diddy]

Welcome to Android Central! It sounds like either the screen or the motherboard has failed. Bring it to a repair shop.