Hello Baran Sezgin,   Resetting the password only resets the password. It does not change any configurations. Administrator's Guide Page 37 To set a new password or change an existing password: [URL]  
Hello, We don't know md3820f password thereforce i will reset password but I am not sure something information on the datasheet. when i will reset password on the controller switch button, is all erease configuration or just only password reset ?  thanks a lot.       
MD3820F Password Forgot About