华为MA5620 EPON/GPON ONU设备恢复出厂设置密码

配置华为MA5626恢复出厂设置（包括登录密码）

空库文件、配置指南下载地址：
链接: https://pan.baidu.com/s/1C4mqtbKYJfwnB-WY-wkeTw?pwd=122m 提取码: 122m

默认用户名：root 默认密码:mduadmin

操作步骤：

1.用串口连接线连接好设备然后打开终端软件连接串口

2.打开设备电源， 当出现 Press <D> key to stop auto-boot 时按下D键

Platform System start …
Master Core Bios Start!
 Memory Data Bus Test ……………..pass.
 Memory Address Bus Test …………..pass.
 Press 'Ctrl+T' To Start Memory Complete Test
 Trace code : 0x00000000
 Copy MasterCore Bios From ROM to RAM ………… OK!
 Uncompress MasterCore Bios From ROM to RAM …… OK!
System Vfs init…OK
The latest reboot is caused by : power off
Copyright (c) 1998 - 2014 by Huawei Technologies Co.,Ltd.
 All Rights Reserved.
The last update date of base BIOS A is : Jul 11 2014   09:13:44
===============================================================
 BOARD INFORMATION : 
   CPU: ARM Integrator - Cortex A9 (ARM).  Processor  running at 400Mhz
   248M bytes DDRAM, 32M bytes flash memory installed on board
   Baudrate of serial channel is 9600bps
   Board's LAN IP address is 10.11.104.2
   Board's LAN Subnet mask is 255.255.255.0
   Board's LAN MAC address is BC:3F:8F:B4:E1:8B
 ===============================================================
System is booting from base BIOS…
Base BIOS version is 108 
Press <D> key to stop auto-boot    3

3.在Main menu菜单选择1

Main menu:
==============================================
0    Boot from flash
1    Load files
9    Reboot system

Please enter a choice : 1 

4.在SubMenu: Load files菜单选择2

SubMenu: Load files
 ==============================================
 0    Back to main menu
 1    Download program file to flash
 2    Download Data file to flash
 3    Download basebios file to flash
 4    Download cpld file
 5    Download packet file
 p    Download cold patch
 l    Download any file to flash by tftp
 d    Download program file to ddram
 6    Download updatetool file to flash
 7    Download equipment file to flash
 a    Download slave core program file to NOR flash
Please enter a choice : 

5.此时选择0，使用串口传输

Please select load mode[default: 1 -- TFTP load mode]:
 ============================================
 0  Xmodem load mode
 1  TFTP load mode
 Q  Quit
Please enter your choice:

波特率选择1，9600BPS

Please Select download speed:
1.    9600BPS
2.    19200BPS
3.    38400BPS
4.    57600BPS
5.    115200BPS
Select baudrate[default : 1]:  

确认选择，输入y，回车继续

You will download file by xmodem at 9600 BPS, are you sure? (y/n) [y]

6.此时设备会处在等待阶段，需要在终端软件上选择发送文件，本文以SecureCRT为例

Press CTRL+C key to abort!
 Waiting …CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC

在CRT上选择传输->发送Xmodem

在弹出的窗口选择对应设备型号的空库文件，单击Send，等待上传完成

7.上传完成后，选择0，返回main menu

Starting xmodem transfer.  Press Ctrl+C to cancel.
 Transferring Hauwei_MA5626_database…
   100%      43 KB     732 bytes/sec 00:01:01       0 Errors  
 44658 bytes download OK 
  save file to main area…..ok!
  save file to spare area…..ok!
 SubMenu: Load files
  ==============================================
  0    Back to main menu
  1    Download program file to flash
  2    Download Data file to flash
  3    Download basebios file to flash
  4    Download cpld file
  5    Download packet file
  p    Download cold patch
  l    Download any file to flash by tftp
  d    Download program file to ddram
  6    Download updatetool file to flash
  7    Download equipment file to flash
  a    Download slave core program file to NOR flash
 Please enter a choice : 

8.在Main Menu菜单选择9，重启设备

Main Menu:
 ==============================================
 0    Boot program
 1    Load files
 9    Reboot system
 debugmode            Switch debug mode
 supermode            Switch super mode
Please enter a choice : 

9.等待设备重启

设备重启完成后，输入默认用户名root，默认密码mduadmin，即可登录系统！