iOS 8.1 (build 12B411) is an official Apple over-the-air update for the iPhone 5 (Global), released on 2014-10-20T17:59:08Z. The update package is 999.42 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: 1505defed78e212f364852d871f4a5ded37e4d92.zip.