iOS 13.3 (build 17C5053a) is an official Apple over-the-air update for the iPhone X (Global), released on 2019-12-05T21:11:27Z. The update package is 95.8 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: 4b19d56d4d7c39464cef26d2f30d7b71caf7b048.zip.