iOS 11.1.2 (build 15B202) is an official Apple over-the-air update for the iPhone 6s+, released on 2017-11-16T21:22:13Z. The update package is 241.84 MB. This is a delta (partial) update that requires 11.0.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 6a2ad02f2aa880fe66324e00f96c288177b23948.zip.