iOS 11.1.1 (build 15B150) is an official Apple over-the-air update for the iPhone X (GSM), released on 2017-11-09T18:09:10Z. The update package is 239.78 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: 9304859d3e95a1218eea0486b160fef42c647baa.zip.