iOS 11.2 (build 15C5111a) is an official Apple over-the-air update for the iPhone 6, released on 2017-11-28T18:00:55Z. The update package is 33.88 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: e9af6df63f3a4c827d8576005028c4cf2a5b0a80.zip.