iOS 11.1.2 (build 15B202) is an official Apple over-the-air update for the iPhone 7 (GSM), released on 2017-11-16T21:23:02Z. The update package is 43.05 MB. This is a delta (partial) update that requires 11.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 228322f7073d26f1b0d07508123df4b1f78d5c3c.zip.