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 152.01 MB. This is a delta (partial) update that requires 7.0.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: d3eb537341eb28d23b86354db111a95606b8b5b9.zip.