iOS 11.1.2 (build 15B202) is an official Apple over-the-air update for the iPhone 6, released on 2017-11-16T21:21:39Z. The update package is 40.95 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: d40ee9c471ccd1a567f340e1c19fe48b6a75aa64.zip.