iOS 11.1.2 (build 15B202) is an official Apple over-the-air update for the iPhone 8 (Global), released on 2017-11-16T21:20:01Z. The update package is 57.95 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: 237024b801ee641a9027e79891b88de10604ee0d.zip.