iOS 12.1.3 (build 16D39) is an official Apple over-the-air update for the iPhone 7 Plus (GSM), released on 2019-01-22T18:14:23Z. The update package is 2 GB. This is a delta (partial) update that requires 10.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: a9481c0eeb5dc5f272ba19d3dc07c2d31711e380.zip.