How do I update my iPhone 7 Plus to iOS 16?

The iPhone 7 is only compatible with iOS 15.5.

As a result, the iPhone 7 has reached the end-of-life support for Software Updates to the latest iOS operating system, which makes it vulnerable to online malicious cyberattacks.

You are invited to visit an Apple retail store to discuss your iPhone upgrade options.

Learn about the ⇢ iPhone Upgrade Program. ⇠📲

Good luck! 👋🏼😉

Smilin-Brian wrote:

The iPhone 7 is only compatible with iOS 15.5.

You can update an iPhone 7 to the latest release of iOS 15 – currently iOS 15.8.4. Just not to iOS 16 or higher.

About iOS 15 Updates - Apple Support

An iPhone 6s, iPhone 6s Plus, iPhone 7, iPhone 7 Plus, or iPhone SE 1 isn't capable of 16 or above; they require an A11 or better CPU.

(260750)

"How"?

It is not possible. If you want to run iOS 16, you need an iPhone 8, iPhone 8 Plus or iPhone X.

But, since you will be looking for a new iPhone, it would make sense to make sure than it will run iOS 26.