iOS 12.1.3 (build 16D5039a) is an official Apple over-the-air update for the iPhone 7 Plus (Global), released on 2019-01-10T18:09:14Z. The update package is 39.49 MB. This is a delta (partial) update that requires 12.1.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: f4a66ee99bf9517ab8dea70b3b48105bc50cbfd0.zip.