iOS 12.1 (build 16B5089b) is an official Apple over-the-air update for the iPhone 7 Plus (Global), released on 2018-10-22T17:02:12Z. The update package is 568.01 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: 4a07c35636907573e6bb9c9818af243fbd5c3a74.zip.