iOS 12.3 (build 16F5129d) is an official Apple over-the-air update for the iPhone 7 Plus (GSM), released on 2019-04-08T17:05:21Z. The update package is 324.35 MB. This is a delta (partial) update that requires 12.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 35e6eb21cec895fb990e178eb6896e7c9109d2c0.zip.