Ensure the phone has at least 30% battery. If it dies during a hard reset, the motherboard could be bricked.
: Select "Yes — erase all data" to begin the process. Once finished, select "reboot system now" . how to hard reset vertu signature link
If you have forgotten your passcode or the screen is frozen/unresponsive, you cannot use the Settings menu. You must use (hardware key combination). Ensure the phone has at least 30% battery