对于USG6000，回显信息如下所示：

Press Ctrl+B to Enter main menu...3                                       
Password: ********                                                              
                                                                                
====================< Extend Main Menu >====================                    
| <1> Boot System                                          |                    
| <2> Set Startup Application Software and Configuration   |                    
| <3> File Management Menu...                              |                    
| <4> Load and Upgrade Menu...                             |                    
| <5> Modify Bootrom Password                              |                    
| <6> Reset Factory Configuration                          |                    
| <7> Reset Factory Password                               |                    
| <0> Reboot                                               |                    
| ---------------------------------------------------------|                    
| Press Ctrl+T to Enter Manufacture Test Menu...           |                    
| Press Ctrl+Z to Enter Diagnose Menu...                   |                    
============================================================ 
Enter your choice(0-7): 7  //此处选择7，进入重置管理员密码子菜单。