iOS 11.3 (build 15E5189f) is an official Apple over-the-air update for the iPhone 7 (Global), released on 2018-02-20T18:06:28Z. The update package is 313.27 MB. This is a delta (partial) update that requires 11.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: da87cdbf443d16449ee8a85f852fa78e510f3f96.zip.