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 171.24 MB. This is a delta (partial) update that requires 8.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: ba0e58f4240027694288d751e58463bf02761339.zip.