iOS 9.3.2 (build 13F69) is an official Apple over-the-air update for the iPhone 5s (GSM), released on 2016-05-16T16:49:20Z. The update package is 1.35 GB. This is a full OTA update that can be applied from any compatible base version. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 2f970ff944a801e71dc758ff0b41d3052aa0192a.zip.