iOS 11.3 (build 15E5189f) is an official Apple over-the-air update for the iPhone 7 Plus (GSM), released on 2018-02-20T18:06:29Z. The update package is 335.65 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: 2b7e5f6b746be74cbf21c8370149afe41347f455.zip.