iOS 8.4 (build 12H4125a) is an official Apple over-the-air update for the iPhone 5 (GSM), released on 2015-06-09T17:53:05Z. The update package is 136.91 MB. This is a delta (partial) update that requires 8.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 99be446e4065b2759610426face8be870bcb4854.zip.