From yesterday I’m trying to update my OS but every time it says unable to install
My 15.7 OS is not getting updated
iPhone 6s, iOS 11
User profile for user:
merlinapple
User level:
Community Specialist
Hello balaji125,
Welcome to Apple Support Communities. It sounds like you need some help with updating your iPhone. We certainly understand why you'd reach out and we are happy to help!
The iPhone 6s is not compatible with iOS 16, so iOS 15.7 would be the latest version.
If you are experiencing issues updating, there are several reasons this can happen.
The following article addresses this issue and can help:
If your iPhone or iPad won't update - Apple Support
Please have a look.