iOS 11.1 (build 15B5086a) is an official Apple over-the-air update for the iPhone 7 (Global), released on 2017-10-16T17:04:24Z. The update package is 127.38 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: fb8905b47db4ab7e7f6ef4634a5036bc9b27f21d.zip.