Q: iphone 6s slide unlock is froze? need help?

Hello rosetshajib,
 

Thanks for participating in the Apple Support Communities. 
 

It looks like your iPhone 6s screen seems frozen and you can't "slide to unlock." If so, the following steps can help:
 

First force restart your iPhone by holding down the Home and Sleep/Wake button for at least ten seconds, until you see the Apple logo. 
 

If the same thing happens again or you still can't unlock your iPhone, try the other tips in If the screen on your iPhone, iPad, or iPod touch doesn't respond to touch.
 

Best Regards.