iOS 7.1 (build 11D169) is an official Apple over-the-air update for the iPhone 4 (GSM / 2012), released on 2014-03-10T16:59:00Z. The update package is 151.97 MB. This is a delta (partial) update that requires 7.0.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: ce39ae61e27355bc5998b75dc5befc14c8f3ec13.zip.