iOS 12.1.3 (build 16D39) is an official Apple over-the-air update for the iPhone 7 (Global), released on 2019-01-22T18:13:22Z. The update package is 401.79 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: dd0da76d1c3c1d870cebcf1cbd982f644f279f44.zip.