iOS 11.0.2 (build 15A421) is an official Apple over-the-air update for the iPhone 7 (GSM), released on 2017-10-03T17:05:09Z. The update package is 1.06 GB. This is a delta (partial) update that requires 10.3.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 05f337e922704f83658ee08861917f7994409ee7.zip.