iOS 12.1.1 (build 16C5043b) is an official Apple over-the-air update for the iPhone 6, released on 2018-11-07T21:09:06Z. The update package is 260.23 MB. This is a delta (partial) update that requires 12.1.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 5e1a70a32b9283fae2555813cb9dc1132b9bdf50.zip.