How to set the password for LG C660 SMS?

Is it BL40e? I am using it now. He told you first that this is not a smart machine, and there is no system. If you set the password by SMS, open the menu-Mobile Settings-Security-Application Lock, and you will be asked to enter the password at this time. If it has never been changed, click OK after the password is 0000 to enter the interface. Just turn on the button of the application lock and select the program for which you want to set the password.