iOS 9.9.10.2.1 (build 14D15) is an official Apple over-the-air update for the iPhone 6s+, released on 2016-12-20T18:02:32Z. The update package is 1.86 GB. This is a full OTA update that can be applied from any compatible base version. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 649ff5d622363131cd66cd8b0f8a2ed59b51ad28.zip.