iOS 13.3.1 (build 17D5026c) is an official Apple over-the-air update for the iPhone SE, released on 2019-12-17T18:13:33Z. The update package is 188.62 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: b59ef14e89f9ad5c655fea9743d7d0b2c6e672d3.zip.