iOS 12.3 (build 16F5155a) is an official Apple over-the-air update for the iPhone 7 Plus (GSM), released on 2019-05-07T17:04:38Z. The update package is 464.78 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: 8251dfc1399843e83312426db230f8699afd284f.zip.