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 375.97 MB. This is a delta (partial) update that requires 8.1.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: b4b80361e016bbbe4c8255c202cef7e43a7f60ef.zip.