iOS 13.1 (build 17A5831c) is an official Apple over-the-air update for the iPhone 7 Plus (GSM), released on 2019-09-04T17:06:29Z. The update package is 266.37 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: e81897720f0e3a87fa60ed09ff76f57733531e1d.zip.