iOS 12.1.3 (build 16D5039a) is an official Apple over-the-air update for the iPhone 7 Plus (GSM), released on 2019-01-10T18:09:16Z. The update package is 38.68 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: a3c731074ebad9ca1cf3f3861f623a7b2da312ba.zip.