iOS 12.1 (build 16B5068i) is an official Apple over-the-air update for the iPhone SE, released on 2018-10-02T17:12:06Z. The update package is 264.95 MB. This is a delta (partial) update that requires 12.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: e0b475c175ef5da0b369c0c76f30c5de5d528dcb.zip.