iOS 7.1 (build 11D169) is an official Apple over-the-air update for the iPhone 4 (GSM), released on 2014-03-10T16:58:58Z. The update package is 152.07 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: 08858013b3e57ea5856c049fddc9f219f06db515.zip.