iOS 9.9.10.2 (build 14C92) is an official Apple over-the-air update for the iPhone 5s (GSM), released on 2016-12-12T17:58:01Z. The update package is 1.38 GB. This is a delta (partial) update that requires 8.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 67dde1639e86ed7524b52b25ea4831fa2867f3e8.zip.