iOS 11.1.2 (build 15B202) is an official Apple over-the-air update for the iPhone 6, released on 2017-11-16T21:21:37Z. The update package is 235.69 MB. This is a delta (partial) update that requires 11.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 4035b740b96023ac95e0796ac61fbd61e55795a5.zip.