iOS 12.1 (build 16B92) is an official Apple over-the-air update for the iPhone 7 Plus (Global), released on 2018-10-30T17:17:51Z. The update package is 1.55 GB. This is a delta (partial) update that requires 11.1.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: d86bd8c4c24acc11d14ba96d598c1fd5601ed1ca.zip.