iOS 10.3.2 (build 14F5075a) is an official Apple over-the-air update for the iPhone 5s (GSM), released on 2017-04-10T17:09:55Z. The update package is 528.83 MB. This is a delta (partial) update that requires 10.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 8574dbc88c2c2b3662d35e5d84bc8ed1925d647e.zip.