iOS 15.7.3 (build 19H307) is an official Apple over-the-air update for the iPhone 7 Plus (GSM), released on 2023-01-23T18:49:38Z. The update package is 712.7 MB. This is a delta (partial) update that requires 15.6 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 074447d638165e3976c19043cdac139ec9fd77f3.zip.