iOS 11.2.5 (build 15D5057a) is an official Apple over-the-air update for the iPhone 6s+, released on 2018-01-11T18:03:23Z. The update package is 135.36 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: 090ee36e5d7afd338ebd87d5776e12d31efb1781.zip.