iOS 12.1 (build 16B5068i) is an official Apple over-the-air update for the iPhone 8 Plus (GSM), released on 2018-10-02T17:11:59Z. The update package is 578.72 MB. This is a delta (partial) update that requires 12.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: df07de6c77ad1f259609610a87ac52536e1e8bd3.zip.