iOS 9.9.10.1.1 (build 14B100) is an official Apple over-the-air update for the iPhone 6, released on 2016-10-31T14:59:39Z. The update package is 1.39 GB. This is a delta (partial) update that requires 8.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c3990d4abc1a11bf909b4ae236aff145c785df73.zip.