iOS 12.1.1 (build 16C50) is an official Apple over-the-air update for the iPhone 7 Plus (GSM), released on 2018-12-05T18:11:57Z. The update package is 380.94 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: ce3b715b1059e92bd9c8f7bafe4abe6f26210ab9.zip.