Once you regain access, take these steps to avoid future headaches:
When you first open the (often under Config -> System Settings or Manufacturer Parameters ), the software will prompt you for a password. Entering 888888 should grant you full access. smartcarve 4.3 password
A factory reset will erase your motor tuning and laser calibration. Write down your current settings (step/mm, max speed) before doing this. Once you regain access, take these steps to