iOS 11 not available...
Update not available. I have an iPhone 7 Plus, but my sortware update says 10.3.3 is up to date.. can anyone help?
OTA Update:
1. Connect iPhone to wall power
2. Connect to the Internet using Wi-Fi
3. Have 7 GB space on iPhone.
4. Settings > General > Software Update
Via computer iTunes.
1. Make sure computer iTunes version is 12.7 or later
2. Connect iPhone to iTunes and updater from there.