Follow the instructions below to figure out which iOS version your phone is running on:
Open your iPhone’s Settings menu
Scroll to “General”
Click on “About”
Check your iOS version
If your phone is not yet running on the latest iOS version, you can run a software update on your phone by going to Settings > General > Software Update > Install Update. If your phone is running on iOS 16 or below, check these steps to configure APN settings manually.
