iOS 13.3.1 (build 17D5050a) is an official Apple over-the-air update for the iPhone 7 Plus (Global), released on 2020-01-22T18:07:32Z. The update package is 166.67 MB. This is a delta (partial) update that requires 13.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 5138d952f3ae33d96fe1f9217fe2ac44dddfd73e.zip.