iOS 12.4 (build 16G5069a) is an official Apple over-the-air update for the iPhone 6, released on 2019-07-09T17:16:27Z. The update package is 99.78 MB. This is a delta (partial) update that requires 12.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: ee0c58b85b9742b282e3e3644338c146643c2e68.zip.