iOS 9.0.2 (build 13A452) is an official Apple over-the-air update for the iPhone 6s, released on 2015-09-30T17:58:35Z. The update package is 74.23 MB. This is a delta (partial) update that requires 9.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: dbb0751a7ab9f1caa4c593a13a98eb780e13d482.zip.