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 167.37 MB. This is a delta (partial) update that requires 12.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c84a86931ddd3585d824378b2f3aaadcf5022855.zip.