iOS 9.9.10.2.1 (build 14D27) is an official Apple over-the-air update for the iPhone 6, released on 2017-01-23T18:08:29Z. The update package is 1.48 GB. This is a delta (partial) update that requires 8.1.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c3e48a672715184ca224783ac042626f91537d82.zip.