iOS 12.1.3 (build 16D5039a) is an official Apple over-the-air update for the iPhone 7 (Global), released on 2019-01-10T18:09:13Z. The update package is 276.51 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: 372340e71548a4385e0b09686c9932ff85ea83c8.zip.