iOS 12.3 (build 16F5156a) is an official Apple over-the-air update for the iPhone 7 (GSM), released on 2019-05-10T17:09:56Z. The update package is 49.6 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: e7f33718e8aebe54cfc3f99fb062af2e8a5aa374.zip.