iOS 8.1 (build 12B407) is an official Apple over-the-air update for the iPhone 5 (Global), released on 2014-10-07T18:06:08Z. The update package is 43.35 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: 94ad8eb1d14f1b70fbf04db2930fabd134a341ef.zip.