iOS 11.2.5 (build 15D5049a) is an official Apple over-the-air update for the iPhone 8 (Global), released on 2018-01-03T18:16:22Z. The update package is 124.32 MB. This is a delta (partial) update that requires 11.2.5 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 002b9cf2f52a36346637ad1a523055679b549272.zip.