How to update iOS 12.5 to iOS 16. iOS 12.5 to iOS 16 requires multiple steps. Make sure your device is compatible with iOS 16. Backup your device to iCloud, iTunes or both. Go to Settings once you're connected to a reliable WiFi network. General, Software Update. Install iOS 16. Accept the terms on the screen. Use your Apple ID after restarting to install iOS 16 using the Apple ID. Restore backup data, install programs, or change settings. Enjoy iOS 16's features! This video will demonstrate how you can upgrade from iOS 12.5 (or earlier) to iOS 16 step-by-step.

Copied!!