iOS 9.3.3 (build 13G34) is an official Apple over-the-air update for the iPhone 4s, released on 2016-07-18T17:55:11Z. The update package is 927.97 MB. This is a delta (partial) update that requires 8.1.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: f5dbf573ad1ca7022872aa58c2136fb1912733fd.zip.