iOS 8.1.2 (build 12B440) is an official Apple over-the-air update for the iPhone 5 (Global), released on 2014-12-09T17:49:04Z. The update package is 79.21 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: 0fa720971206cbdc2f247820dc2ddad6e909a7e0.zip.