iOS 8.3 (build 12F70) is an official Apple over-the-air update for the iPhone 5 (Global), released on 2015-04-08T17:56:12Z. The update package is 391.49 MB. This is a delta (partial) update that requires 8.0.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: f718fb10d87d9512a78c8948bd69ef048b3f0770.zip.