iOS 12.1.2 (build 16C101) is an official Apple over-the-air update for the iPhone 6+, released on 2018-12-17T21:06:43Z. The update package is 1.42 GB. This is a delta (partial) update that requires 11.1.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: b3b83a754a0a93865b1854c1e0b64b5c81a5c8d1.zip.