iOS 10.1.1 (build 14B100) is an official Apple over-the-air update for the iPhone 5s (GSM), released on 2016-10-31T14:59:34Z. The update package is 1.02 GB. This is a delta (partial) update that requires 9.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c284b8b496b063ada1a1cb2fc8dcb04ed39e02f5.zip.