iOS 15.7 (build 19H12) is an official Apple over-the-air update for the iPhone X (GSM), released on 2022-09-12T17:42:28Z. The update package is 2.49 GB. This is a delta (partial) update that requires 14.8 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 89353cab77bcc26c52832274d6579bcf754aa7bc.zip.