iOS 12.1.2 (build 16C101) is an official Apple over-the-air update for the iPhone 7 Plus (GSM), released on 2018-12-17T21:07:54Z. The update package is 1.53 GB. This is a delta (partial) update that requires 11.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: a2523a031dc62507a7d1f38d6ff191672bf0d7ad.zip.