iOS 12.1.2 (build 16C101) is an official Apple over-the-air update for the iPhone 7 Plus (Global), released on 2018-12-17T21:07:40Z. The update package is 1.49 GB. This is a delta (partial) update that requires 11.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 4c93d6279b52de20e964d1c7ea0f9d22175312e0.zip.