iOS 13.3 (build 17C5053a) is an official Apple over-the-air update for the iPhone 11 Pro Max, released on 2019-12-05T21:11:33Z. The update package is 126.45 MB. This is a delta (partial) update that requires 13.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 8ed20711aa3d006b69eb547575aa77370ef24d51.zip.