iOS 12.1.2 (build 16C101) is an official Apple over-the-air update for the iPhone SE, released on 2018-12-17T21:07:22Z. The update package is 56.35 MB. This is a delta (partial) update that requires 12.1.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: f6b38dbe239bbcd0d2420aa542bc926de9047d09.zip.