iOS 12.1.2 (build 16C101) is an official Apple over-the-air update for the iPhone SE, released on 2018-12-17T21:07:14Z. The update package is 1.7 GB. This is a delta (partial) update that requires 10.1.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 487cd3abd59bd41a39c432ed3c19ad61dead077c.zip.