iOS 12.1.2 (build 16C101) is an official Apple over-the-air update for the iPhone 7 Plus (GSM), released on 2018-12-17T21:07:57Z. The update package is 381.26 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: daab7abef5144ba74f764e97deec388a4689b7ae.zip.