IOS 11.1.1

Hi,

My IPhone 6s 128GB which have 18GB+ free storage freezes frequently no matter how many time I restart it or force restart it, a lot of the time I can not wake up the phone or when unlocking the phone it just freeze, some times it would recognize my finger print and show the passcode filed filled but then freezes this is driving me crazy I can't use the phone when I need to! it is jus not reliable

It even freeze while not in use i know this because it happens while I'm asleep and the alarms end up not working.

I suspect that this happens more frequently when the battery is above 50%!

This all started with IOS 11. meanwhile when it's working it works smoothly no lagging what so ever!!

APPLE shame on you for releasing such buggy OS 😠!