l will like to update my iPhone6s plus to iOS 15.7.9

I need to update my ios 14.3

How update ios 14 to 12.5.7

I will update my I phone

Settings>General>Software update.

you need to be connected to WiFi and have at least 50% battery charge.

I won’t to my iPhone to update to iOS 15.6.7

This is not possible. If your iPhone is qualified, it will update to iOS 15.8 or higher.

What model of iPhone do you have? Settings > General > About > Model Name

I want to see it on my iPhone