iOS 11.1 (build 15B93) is an official Apple over-the-air update for the iPhone 6+, released on 2017-10-23T17:07:04Z. The update package is 241.84 MB. This is a delta (partial) update that requires 11.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 54d38f68be42c06ae9cc33914ef290c2f08e1f33.zip.