Steps to restore iPhone X in Recovery Mode:

• The Volume Up button should be pressed and then released.
• Press and hold the Volume Down button for a few seconds before releasing it.
• Hold the Side button down until an Apple logo appears. When you see this logo, let go of the button.
• Connect your iPhone to a computer using a USB cable.
• Launch iTunes on a Windows PC or Mac running macOS Mojave or earlier. Open Finder on a Mac running macOS Catalina or later. If iTunes was already open, you may need to close and reopen it.
• The Volume Up button should be pressed and then released.
• Press and hold the Volume Down button for a few seconds before releasing it.
• When you see the Apple logo, hold the Side button and don't let go.
• Hold the Side button down until the Recovery Mode screen appears.

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