iOS 11.2.5 (build 15D60) is an official Apple over-the-air update for the iPhone 6, released on 2018-01-23T18:30:35Z. The update package is 446.83 MB. This is a delta (partial) update that requires 11.1.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 02f5a8c3d46f9a1e1cf6636babef2f6ea444db7c.zip.