iOS 9.3 (build 13E5233a) is an official Apple over-the-air update for the iPhone 6, released on 2016-03-14T21:45:49Z. The update package is 41.67 MB. This is a delta (partial) update that requires 9.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: ee4f31ae7348a400a2588f531d9c5c181b9a692d.zip.