iOS 12.3 (build 16F5155a) is an official Apple over-the-air update for the iPhone 7 (GSM), released on 2019-05-07T17:04:36Z. The update package is 67.26 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: ce8f5cb868e11d038ac04b1eed03ce71a5c78049.zip.