iOS 11.1 (build 15B93) is an official Apple over-the-air update for the iPhone 7 (GSM), released on 2017-10-23T17:08:47Z. The update package is 290.87 MB. This is a delta (partial) update that requires 11.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 21680549bf7ee591f214206ae88a25436f6e3ce4.zip.