iOS 10.3 (build 14E5273a) is an official Apple over-the-air update for the iPhone 5c (Global), released on 2017-03-13T17:01:56Z. The update package is 256.22 MB. This is a delta (partial) update that requires 10.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 5d5c4819b989b84aea0d746bd179871a12e89ef8.zip.