iOS 9.3.4 (build 13G35) is an official Apple over-the-air update for the iPhone 6, released on 2016-08-04T17:08:27Z. The update package is 303.81 MB. This is a delta (partial) update that requires 9.2.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 54fd7ce2971fdf30bfaa31187a49c5bb9304afd6.zip.