iOS 12.1.1 (build 16C5050a) is an official Apple over-the-air update for the iPhone 7 (GSM), released on 2018-11-15T18:05:04Z. The update package is 391.62 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: e3e78b916056114eab981467f1c79e169509ffbc.zip.