iOS 12.3 (build 16F5148a) is an official Apple over-the-air update for the iPhone 7 Plus (GSM), released on 2019-04-29T17:36:23Z. The update package is 99.75 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: 7ac2d2d3df9ecf80df3d30c25e2e5b8479b01459.zip.