iOS 11.1.2 (build 15B202) is an official Apple over-the-air update for the iPhone 7 (GSM), released on 2017-11-16T21:22:53Z. The update package is 291 MB. This is a delta (partial) update that requires 11.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 4d7007711fec25345bd89275b939337985b23b5e.zip.