iOS 9.3 (build 13E233) is an official Apple over-the-air update for the iPhone 5c (GSM), released on 2016-03-21T18:56:21Z. The update package is 226.2 MB. This is a delta (partial) update that requires 9.2.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 300184b56175ee0a727eaf82db4dfdf61abf4a10.zip.