iOS 9.3 (build 13E5233a) is an official Apple over-the-air update for the iPhone 6+, released on 2016-03-14T21:45:47Z. The update package is 41.73 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: c098cf8e54e0b693ed1e19043dae79deef22fbb4.zip.