iOS 11.1 (build 15B93) is an official Apple over-the-air update for the iPhone 7 Plus (GSM), released on 2017-10-23T17:08:52Z. The update package is 1.2 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: 3cc51ece58d95f617c79c07b7d83e518d3006db3.zip.