iOS 12.1.1 (build 16C50) is an official Apple over-the-air update for the iPhone SE, released on 2018-12-05T18:11:06Z. The update package is 1.7 GB. This is a delta (partial) update that requires 10.2.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c23e1f7a4591dbc73adaff744089cbeb76703bd0.zip.