iOS 7.1 (build 11D167) is an official Apple over-the-air update for the iPhone 4 (CDMA), released on 2014-03-10T16:58:40Z. The update package is 157.83 MB. This is a delta (partial) update that requires 7.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: febbe9942a004434e15533b7cb6b655cfc6bb834.zip.