iOS 12.3 (build 16F5156a) is an official Apple over-the-air update for the iPhone 7 Plus (GSM), released on 2019-05-10T17:09:57Z. The update package is 464.73 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: f9102f1c2c612cc78dbc72b77455508917d544f0.zip.