iOS 12.1.3 (build 16D39) is an official Apple over-the-air update for the iPhone 7 Plus (Global), released on 2019-01-22T18:13:41Z. The update package is 2 GB. This is a delta (partial) update that requires 10.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: f8f3c2763e3c58877d97f04f3e49756655db82ec.zip.