iOS 13.1 (build 17A5831c) is an official Apple over-the-air update for the iPhone X (Global), released on 2019-09-04T17:06:11Z. The update package is 490.15 MB. This is a delta (partial) update that requires 13.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 31421cf4d959d2c06c11fa9716dce3a68ab7a2a8.zip.