iOS 12.0 (build 16A5308e) is an official Apple over-the-air update for the iPhone 6+, released on 2018-06-19T17:04:54Z. The update package is 565.96 MB. This is a delta (partial) update that requires 12.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 631de3bed5f80f2adf4203619a45039cc2d8a2ab.zip.