iOS 15.7.3 (build 19H307) is an official Apple over-the-air update for the iPhone 7 (GSM), released on 2023-01-23T18:49:35Z. The update package is 2.53 GB. This is a delta (partial) update that requires 14.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 790ccd5842fbe336ea4a6b80f9de2a4dbe062777.zip.