Can I help me get the iOS 17

Should your build model iPhone be the one in the device information

within each of your posts: that is not able to get any later upgrade.

"iPhone 6s, iOS 14"

[Yours if so, only may

update to iOS 15.7.9]

With each hardware build, there is limited advancement; due to age

of the hardware. These all are superseded as technology moves on.

The iPhone 6 cannot update further then iOS 12.5.7

The iPhone 6s cannot update further then iOS 15.7.8