iOS 9.3.1 (build 13E238) is an official Apple over-the-air update for the iPhone 5c (Global), released on 2016-03-31T16:54:59Z. The update package is 286.05 MB. This is a delta (partial) update that requires 9.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 092a4db0f87036d08ede45cad856e2f8f5d23cf3.zip.