iOS 11.2 (build 15C5097d) is an official Apple over-the-air update for the iPhone 6s+, released on 2017-11-06T18:01:06Z. The update package is 108.92 MB. This is a delta (partial) update that requires 11.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 05576889a720d5d478807c331997a84879c448d4.zip.