iOS 12.1.2 (build 16C101) is an official Apple over-the-air update for the iPhone 6, released on 2018-12-17T21:06:51Z. The update package is 1.29 GB. This is a delta (partial) update that requires 11.4.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: a691e6ec5e298d40cc829fad36bb5060138824e8.zip.