iOS 9.3.3 (build 13G34) is an official Apple over-the-air update for the iPhone 4s, released on 2016-07-18T17:55:12Z. The update package is 199 MB. This is a delta (partial) update that requires 9.2.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 5ae17a5b2b18ddd57898820d0daa77b93b95dfb9.zip.