iOS 11.2.5 (build 15D60) is an official Apple over-the-air update for the iPhone 7 (GSM), released on 2018-01-23T18:31:41Z. The update package is 525.69 MB. This is a delta (partial) update that requires 11.1.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 600b2364cef08f4bb6439f3b79587865f7639b1c.zip.