iOS 8.3 (build 12F70) is an official Apple over-the-air update for the iPhone 5 (Global), released on 2015-04-08T17:56:11Z. The update package is 904.74 MB. This is a delta (partial) update that requires 7.1.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: aa7c7bc5f00aa81e26d7dbe9a30393b25cea8f0e.zip.