I want to update my phone
How can I update my phone
iPhone 6s Plus, iOS 14
Question marked as
Assuming that your phone has a good Wi-Fi Internet connection and the battery is fully charged.....
Tap Settings > General > Software Update
If an update is available for your phone, it will appear
However, your iPhone 6s Plus cannot install iOS 16 or iOS 17, if that might be what you are asking about.