iOS 11.1.2 (build 15B202) is an official Apple over-the-air update for the iPhone 6, released on 2017-11-16T21:21:32Z. The update package is 1.16 GB. This is a delta (partial) update that requires 10.1.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c7812586b8fceb5da4e5c56f31b139ab4360adeb.zip.