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 1.32 GB. This is a delta (partial) update that requires 8.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c6c33e040a96f2a32d2ec935cf0513ff3b366e63.zip.