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 1.44 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: 49ae5ae84d292670328309bfb8296a7d15a80b71.zip.