iOS 13.1 (build 17A5831c) is an official Apple over-the-air update for the iPhone XS, released on 2019-09-04T17:06:17Z. The update package is 268.14 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: d16a6c8c316bb114e64e039417ae98b6cb02d768.zip.