iOS 11.1 (build 15B93) is an official Apple over-the-air update for the iPhone 7 (Global), released on 2017-10-23T17:08:16Z. The update package is 1.15 GB. This is a delta (partial) update that requires 10.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 480deff42f5cc4e56c75e8a491a4620e65dbedb9.zip.