iOS 12.1.1 (build 16C5036c) is an official Apple over-the-air update for the iPhone 7 (GSM), released on 2018-10-31T17:04:07Z. The update package is 390.14 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: 1e1a26d5b5471d110ebdf22ec4e396b649212874.zip.