iOS 13.1 (build 17A5837a) is an official Apple over-the-air update for the iPhone 8 Plus (GSM), released on 2019-09-10T20:23:11Z. The update package is 247.76 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: dbb9847df5647b009eb5dac01e60a3fb683b7f85.zip.