iOS 8.4 (build 12H143) is an official Apple over-the-air update for the iPhone 5 (GSM), released on 2015-06-30T15:51:18Z. The update package is 411.31 MB. This is a delta (partial) update that requires 8.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 5be3a8b9883f0010d2fd3f92c8836dd9c288485e.zip.