To factory reset a SonicWall device using the CLI, you can use the reinitializetofactorysettings command. You can also perform a factory reset by entering a series of commands to boot the device with default settings.

Steps to perform a factory reset using the CLI:

• Log in to the device's CLI
• Enter the reinitializetofactorysettings command
• The device will reboot and return to factory default settings

Steps to perform a factory reset using a series of commands:

1. Select the highlighted entry, which is usually “SonicCore X”
2. Select r to enter recovery mode
3. Enter 0 to enable maintenance mode
4. Enter the maintenance key
5. Select 5 to boot the device with default settings
6. The device will reboot and return to factory default settings

You can also perform a factory reset using the device's GUI.