iOS 13.1 (build 17A5821e) is an official Apple over-the-air update for the iPhone 8 Plus (GSM), released on 2019-08-27T17:29:14Z. The update package is 420.45 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: fe3e7f0b1a1824c0bb7bfd53aa521086ae9ca62b.zip.