iOS 11.2 (build 15C5097d) is an official Apple over-the-air update for the iPhone 6, released on 2017-11-06T18:01:05Z. The update package is 108.52 MB. This is a delta (partial) update that requires 11.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 24c1be794643a425429b9fa654e7baa851344610.zip.