iOS 12.1.1 (build 16C50) is an official Apple over-the-air update for the iPhone 7 (GSM), released on 2018-12-05T18:11:46Z. The update package is 1.86 GB. This is a delta (partial) update that requires 10.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 8c7f8acafc864a4f9bc78d3283c626db0844df2f.zip.