iOS 12.1.2 (build 16C101) is an official Apple over-the-air update for the iPhone SE, released on 2018-12-17T21:07:16Z. The update package is 1.68 GB. This is a delta (partial) update that requires 10.3.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 92d27d760bdea2f0c14d8367b85eec62ef4db1a9.zip.