Turn off the Prestige and begin a terminal emulation software session with the default console port settings.Turn on the Prestige again.When you see the massage"Press Any key to enter Debug Mode within 3 seconds",press any key to enter debug mode.You should already have downloaded the correct file from your nearest ZyXL FTP site.See section 10.4 for more information on how to transfer the configuration file to your Prestige.
更新1:
your password or for some reason cannot access the SMT menu you will need to reinstall the configuration file,you will lose all configurations that you had before and the speed of the console port will be reset to the default of 9600bps with 8 data bit,no parity and 1 stop bit(8n1).