7 Man-Machine Interaction 
 
Huawei Proprietary and Confidential                                     
Copyright © Huawei Technologies Co., Ltd. 
 
1. On the default screen, press    to enter 
the main menu. 
NOTE 
On the default screen, after you insert a USB flash 
drive and log in to the system, the USB expansion 
screen is displayed. In this case, perform operations 
in step 5. 
3. Enter the correct user name and password 
by pressing    or  , and press  . 
NOTE 
 
The optional user names are Advanced User 
and Special User. The initial password for 
Advanced User and Special User is 000001. If 
you forgot the password, contact Huawei 
technical support for a dynamic password that is 
effective only on the current day. Change the 
password after login. 
 
After the authentication is successful, the 
system keeps the authentication information for 
30 seconds. If you exit from the Maintenance 
screen and log in again within 30 seconds, no 
authentication is required. 
4. Choose USB Expansion and press  . 
NOTE 
If no USB flash drive is detected, the LCD displays 
a message prompting that a flash drive needs to be 
inserted.