iOS 9.2.1 (build 13D15) is an official Apple over-the-air update for the iPhone 5c (GSM), released on 2016-01-19T17:59:45Z. The update package is 970.1 MB. This is a delta (partial) update that requires 8.1.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 9876e88dc7723abc266662f9144fe5251d3cc018.zip.