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 290.9 MB. This is a delta (partial) update that requires 11.0.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 7f3b265db9d5c7affb548e72a333fe9bad869fc0.zip.