While you can manually download from third-party repositories like IPSW.me or iClarified , it is usually easier and safer to update directly on your device:
The is the "Global/GSM" version of the iPhone 7, featuring the A10 Fusion chip and a 4.7-inch Retina display. While originally shipped with iOS 10, it supports up to iOS 15.8.6 as of early 2026, meaning it can run versions well beyond 14.6. Feature Highlight: What iOS 14.6 Brought to iPhone 7 Added options to use an email address instead
Enabled users to share their Apple Card with family members and track joint spending (available in the US). especially with iOS 14.6
Added options to use an email address instead of a phone number for "Lost Mode" on AirTags. Added options to use an email address instead
The remains a remarkably capable device for its age, especially with iOS 14.6 , which introduced key enhancements for Apple's ecosystem. Key Details for Your iPhone 7 (A1778)