iOS 13.3 (build 17C5053a) is an official Apple over-the-air update for the iPhone 7 (GSM), released on 2019-12-05T21:11:39Z. The update package is 404.76 MB. This is a delta (partial) update that requires 13.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 1ef206942cd60cf6b05c65021ba8030077aaff1f.zip.