iOS 8.1.3 (build 12B466) is an official Apple over-the-air update for the iPhone 5c (GSM), released on 2015-01-27T17:55:06Z. The update package is 181.16 MB. This is a delta (partial) update that requires 8.0.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 6d1d5266d7652ded4ff43b37a0cc9117343eb194.zip.