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 1.19 GB. This is a delta (partial) update that requires 15.3.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: ee6724bcae314483a47c08e75db1aa540b2c896c.zip.