iOS 9.9.11.1.1 (build 15B150) is an official Apple over-the-air update for the iPhone 5s (GSM), released on 2017-11-09T18:09:22Z. The update package is 1.38 GB. This is a delta (partial) update that requires 9.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: bace2caa5bfe4762005b3dd3793eefff76e57443.zip.