iOS 9.3.5 (build 13G36) is an official Apple over-the-air update for the iPhone 6+, released on 2016-08-25T16:53:34Z. The update package is 345.22 MB. This is a delta (partial) update that requires 9.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 4bb7cdf94af5199fdf77bcf30667bd611a2a8fc3.zip.