iOS 11.1 (build 15B5086a) is an official Apple over-the-air update for the iPhone 7 (GSM), released on 2017-10-16T17:04:25Z. The update package is 126.56 MB. This is a delta (partial) update that requires 11.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 0a4ff38b63743be3b1b7ff916230478cc0c7ea06.zip.