iOS 11.2.5 (build 15D60) is an official Apple over-the-air update for the iPhone 6, released on 2018-01-23T18:30:34Z. The update package is 1.07 GB. This is a delta (partial) update that requires 10.3.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 4694e5daf65bcc969705ba8a7ed2fefe4e397ac1.zip.