iOS 8.1.1 (build 12B5436) is an official Apple over-the-air update for the iPhone 6, released on 2014-11-17T18:06:02Z. The update package is 1.7 GB. This is a delta (partial) update that requires 8.1.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: fc6356ed489458b5b0b3ae795219f526c17c9f87.zip.