iOS 11.1 (build 15B93) is an official Apple over-the-air update for the iPhone 7 Plus (GSM), released on 2017-10-23T17:08:54Z. The update package is 296.77 MB. This is a delta (partial) update that requires 11.0.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 93c1df5a374e74de4f8fd9d93a30c182d64e512d.zip.