iOS 15.7.3 (build 19H307) is an official Apple over-the-air update for the iPhone SE, released on 2023-01-23T18:49:25Z. The update package is 2.3 GB. This is a delta (partial) update that requires 14.7 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: ad7b617a8ccd09b934e704c6412ca95d2f45c94b.zip.