iOS 12.1.3 (build 16D5032a) is an official Apple over-the-air update for the iPhone 7 Plus (Global), released on 2018-12-19T18:07:09Z. The update package is 316.7 MB. This is a delta (partial) update that requires 12.1.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 2615f51930c4096b6ae6c424d4ddb9a38530611a.zip.