iOS 12.1.3 (build 16D39) is an official Apple over-the-air update for the iPhone 7 (Global), released on 2019-01-22T18:12:58Z. The update package is 1.52 GB. This is a delta (partial) update that requires 11.0.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 9ae8f9a80bb0d6a0b18887c6ebf7bd7d349b0ed9.zip.