iOS 8.1 (build 12B411) is an official Apple over-the-air update for the iPhone 6+, released on 2014-10-20T17:59:09Z. The update package is 127.25 MB. This is a delta (partial) update that requires 8.0.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: dd9ab23d109b6d3b9972e7b473fed5e7c81c440d.zip.