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 464.84 MB. This is a delta (partial) update that requires 12.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 4483a5b1711d8cd09dd30ace088fc694d132bcb9.zip.