iOS 9.9.10.2.1 (build 14D27) is an official Apple over-the-air update for the iPhone 6s+, released on 2017-01-23T18:08:36Z. The update package is 1.21 GB. This is a delta (partial) update that requires 9.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 8c691945a0df88075ab0a3c652c3bd334b3916ec.zip.