iOS 9.9.10.0.1 (build 14A403) is an official Apple over-the-air update for the iPhone 6, released on 2016-09-13T16:56:21Z. The update package is 1.41 GB. This is a delta (partial) update that requires 8.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 4cb1f3b0082cd7645ed351e3ad209f8cc4685876.zip.