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 69.92 MB. This is a delta (partial) update that requires 8.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: add206b5de08f0cebb90d6704eef888c095ef4b8.zip.