iOS 11.1.1 (build 15B150) is an official Apple over-the-air update for the iPhone SE, released on 2017-11-09T18:11:23Z. The update package is 235.16 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: 42586eb442014ce60840295de6ca678407437fe8.zip.