iOS 11.1 (build 15B93) is an official Apple over-the-air update for the iPhone 7 (GSM), released on 2017-10-23T17:08:45Z. The update package is 1.09 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: 85fed7cfe8f8dba50d3aa442d7d7574a35f651e2.zip.