iOS 12.1.2 (build 16D5024a) is an official Apple over-the-air update for the iPhone 6+, released on 2018-12-10T18:09:10Z. The update package is 269.75 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: 2e4e9d1a9d7de0ae30143967f8c589661bd366e4.zip.