iOS 12.1.2 (build 16D5024a) is an official Apple over-the-air update for the iPhone 8 Plus (GSM), released on 2018-12-10T18:09:06Z. The update package is 364.49 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: 88f873b554662d19091c643071e7d231c0eee951.zip.