iOS 13.1 (build 17A5837a) is an official Apple over-the-air update for the iPhone XS, released on 2019-09-10T20:24:17Z. The update package is 379.48 MB. This is a delta (partial) update that requires 13.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 6c8bfab601a1a06b3282b6aa54a700b70523cd0e.zip.