How can I get my backlight working on my iPhone 6?

[iMore Question]

backlight not working on iPhone6

In the middle of a phone call backlight stopped working and I can't disconnect call or turn phone off

 

[Rob Phillips]

Re: backlight not working on iPhone6

Welcome to iMore! Reset your device by holding the power button and home button down simultaneously until you see the Apple boot logo. That should fix your problem.