iOS 8.4 (build 12H143) is an official Apple over-the-air update for the iPhone 5c (Global), released on 2015-06-30T15:51:20Z. The update package is 915.66 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: d90be59a0cd919b263eb098e50586ed1a30c7482.zip.