iOS 11.2.5 (build 15D60) is an official Apple over-the-air update for the iPhone 6, released on 2018-01-23T18:30:40Z. The update package is 155.52 MB. This is a delta (partial) update that requires 11.2.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: f60a20aed179207e57cbfb8ac8ffaa3a90cd2699.zip.