iOS 12.1.1 (build 16C5036c) is an official Apple over-the-air update for the iPhone 7 Plus (GSM), released on 2018-10-31T17:04:08Z. The update package is 392.38 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: c4bfa9ca7038c1d3ac89e54d44fd81231fff011a.zip.