iOS 11.2.5 (build 15D5057a) is an official Apple over-the-air update for the iPhone X (GSM), released on 2018-01-11T18:03:17Z. The update package is 146.72 MB. This is a delta (partial) update that requires 11.2.5 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 18ea3938c5e593a288bdd3b8b880348952d26bb5.zip.