iOS 7.1 (build 11D169) is an official Apple over-the-air update for the iPhone 4 (GSM / 2012), released on 2014-03-10T16:58:58Z. The update package is 158.51 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: 87304a31d523bb7f0dea8c463b085f968b7dc339.zip.