iOS 9.3.5 (build 13G36) is an official Apple over-the-air update for the iPhone 5 (GSM), released on 2016-08-25T16:53:28Z. The update package is 57.22 MB. 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: 764b63b9b0778c69f2dcd93d1f3bdb8e63e60bfb.zip.