iOS 11.0.2 (build 15A421) is an official Apple over-the-air update for the iPhone 6, released on 2017-10-03T17:04:28Z. The update package is 1.05 GB. This is a delta (partial) update that requires 10.3.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 89421f82fa57301d961043e6b3e59fac5848016b.zip.