iOS 9.9.10.2 (build 14C92) is an official Apple over-the-air update for the iPhone 5s (GSM), released on 2016-12-12T17:58:02Z. The update package is 1.09 GB. This is a delta (partial) update that requires 9.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 974c75c548c32c4d05fd31d78cf0ee8282495869.zip.