iOS 9.3 (build 13E233) is an official Apple over-the-air update for the iPhone 5 (GSM), released on 2016-03-21T18:56:15Z. The update package is 904.8 MB. This is a delta (partial) update that requires 8.4.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: faa99a3f10b06462f1a5b8cb9fd6fb54988516a1.zip.