前几天我公司售后技术员拿回几台H3C S5024PV2_EI交换机，所有交换机的故障都是无法进入应用系统配置界面，只能启动到BootWare扩展字段。在查找相关资料和拔打H3C售后服务电话后，得到相关资料和更新文件，在对所有交换机尝试做了更新固件的操作后，其中一台在烤机后故障排除，但其余几台烤机发现重启过后还是无法正常工作，只能返厂维修（H3C售后技术也是这样解释）。
虽然刷新固件并没有把所有交换机都修复，但还是有一定概率修复机会的（修复一台）。下面我就把过程和方法分享给大家，希望对以后的工作有所帮助。
H3C S5024PV2_EI交换机启动故障如下：
****************************************************************************
* *
* H3C S5024PV2-EI BootWare, Version 1.03 *
* *
****************************************************************************
Copyright (c) 2004-2017 New H3C Technologies Co., Ltd.
Compiled Date : Apr 14 2017 15:05:19
CPU Type : MIPS4kec
CPU L1 Cache : 16KB
CPU Clock Speed : 500MHz
Memory Type : DDR3 SDRAM
Memory Size : 128MB
Memory Speed : 300MHz
BootWare Size : 3MB
Flash Size : 32MB
Password recovery capability is enabled.
Note: The current operating device is flash
Enter < Storage Device Operation > to select device.
===========================
|<1> Boot System |
|<2> Enter Serial SubMenu |
|<3> Enter Ethernet SubMenu |
|<4> File Control |
|<5> Restore to Factory Default Configuration |
|<6> Skip Current System Configuration |
|<7> BootWare Operation Menu |
|<8> Clear Super Password |
|<9> Storage Device Operation |
|<0> Reboot |
============================================================================
Ctrl+Z: Access EXTEND-ASSISTANT MENU
Ctrl+F: Format File System
Ctrl+C: Display Copyright
Enter your choice(0-9):
要更新固件，我们首先要把新的bin文件导入交换机内存中。所以我们要先把老的bin文件给删除，清空内存。方法如下：
Enter your choice(0-9): 4 ——这里选择4（文件控制）
Note:the operating device is flash
| |<1> Display All File(s)
| |<2> Set Application File type
| |<3> Set Configuration File type
| |<4> Delete File
| |<0> Exit To Main Menu
Enter your choice(0-4): 1 ——显示所有文件
Display all file(s) in flash: 'M' = MAIN 'B' = BACKUP 'S' = SECURE 'N/A' = NOT ASSIGNED
============================================================================
|NO. Size(B) Time Type Name
| |1 11701248 Aug/08/2008 20:00:00 M s5024pv2_ei-cmw520-r1103.bin ——这是主文件
| |2 11701248 Aug/08/2008 20:00:00 B s5024pv2_ei-cmw520-r1103_b~001 ——这是备份文件
| |3 1048544 Oct/25/2000 21:10:02 N/A logfile/logfile.log ——这是日志文件
Note:the operating device is flash
| |<1> Display All File(s)
| |<2> Set Application File type
| |<3> Set Configuration File type
| |<4> Delete File
| |<0> Exit To Main Menu
Enter your choice(0-4): 4 ——选择4，删除文件
Deleting the file in flash: 'M' = MAIN 'B' = BACKUP 'S' = SECURE 'N/A' = NOT ASSIGNED
|NO. Size(B) Time Type Name
| |1 11701248 Aug/08/2008 20:00:00 M s5024pv2_ei-cmw520-r1103.bin
| |2 11701248 Aug/08/2008 20:00:00 B s5024pv2_ei-cmw520-r1103_b~001
| |3 1048544 Oct/25/2000 21:10:02 N/A logfile/logfile.log
| |0 Exit
Enter file No:1 ——选择1，主文件
The file you selected is flash:/s5024pv2_ei-cmw520-r1103.bin,Delete it? [Y/N ]Y ——是否删除，选择Y
Deleting.................................................................... ................................................................... ——删除中，请等待
Connection closed.
[END] 2018/4/9 13:00:12 ——提示删除完成
===========================
|<1> Boot System |
|<2> Enter Serial SubMenu |
|<3> Enter Ethernet SubMenu |
|<4> File Control |
|<5> Restore to Factory Default Configuration |
|<6> Skip Current System Configuration |
|<7> BootWare Operation Menu |
|<8> Clear Super Password |
|<9> Storage Device Operation |
|<0> Reboot |
============================================================================
Ctrl+Z: Access EXTEND-ASSISTANT MENU
Ctrl+F: Format File System
Ctrl+C: Display Copyright
Enter your choice(0-9): 3 ——选择3，进入网络子选项
==========================
|Note:the operating device is flash |
|<1> Download Application Program To SDRAM And Run |
|<2> Update Main Application File |
|<3> Update Backup Application File |
|<4> Update Secure Application File |
|<5> Modify Ethernet Parameter |
|<0> Exit To Main Menu |
|
============================================================================
Enter your choice(0-5): 5 ——修改网络参数
==========================
|Note: '.' = Clear field. |
| '-' = Go to previous field. |
| Ctrl+D = Quit. |
============================================================================
Protocol (FTP or TFTP) :tftp ——默认使用协议
Load File Name :host
:S5024PV2_EI-CMW520-R1111.bin ——写入我们要更新的bin文件名称
Target File Name :target
:S5024PV2_EI-CMW520-R1111.bin ——这里一样
Server IP Address :192.168.1.1 ——这是tftp服务器的地址，也就是本机电脑要设置的地址
Local IP Address :192.168.1.253 ——这是交换机自动得到的地址
Gateway IP Address :0.0.0.0
然后我把自己的笔记本网卡配置成192.168.1.1（这很简单不配图解），然后打开3CDaemon这个tftp软件，配置成tftp服务器：
设置好上传目录，把要更新的bin文件也放在这个目录下：
进入交换机配置界面进行文件上传：
==========================
|Note:the operating device is flash |
|<1> Download Application Program To SDRAM And Run |
|<2> Update Main Application File |
|<3> Update Backup Application File |
|<4> Update Secure Application File |
|<5> Modify Ethernet Parameter |
|<0> Exit To Main Menu |
|
============================================================================
Enter your choice(0-5): 2 ——选择2，下载更新应用文件
Loading.....................................................................
............................................................................
............................................................................
.............................Done!
12649472 bytes downloaded! ——等一段时间后下载成功
Updating File flash:/S5024PV2_EI-CMW520-R1111.bin...........................
............................................................................
.Done! —— 更新完成
==========================
|Note:the operating device is flash |
|<1> Download Application Program To SDRAM And Run |
|<2> Update Main Application File |
|<3> Update Backup Application File |
|<4> Update Secure Application File |
|<5> Modify Ethernet Parameter |
|<0> Exit To Main Menu |
|
============================================================================
Enter your choice(0-5): 0 ——退出到上一级菜单
===========================
|<1> Boot System |
|<2> Enter Serial SubMenu |
|<3> Enter Ethernet SubMenu |
|<4> File Control |
|<5> Restore to Factory Default Configuration |
|<6> Skip Current System Configuration |
|<7> BootWare Operation Menu |
|<8> Clear Super Password |
|<9> Storage Device Operation |
|<0> Reboot |
============================================================================
Ctrl+Z: Access EXTEND-ASSISTANT MENU
Ctrl+F: Format File System
Ctrl+C: Display Copyright
Enter your choice(0-9): 1 ——选择1，重启系统
Starting to get the main application
file--flash:/S5024PV2_EI-CMW520-R1111.bin!.................................. ——加载更新后的bin文件
..............................................................
The main application file is self-decompressing.............................
.................................Done! ——主文件解压完成
System application is starting... ——系统应用启动
Startup configuration file does not exist.
Configuring default settings.
User interface aux0 is available.
Press ENTER to get started.
#Apr 26 12:00:30:954 2000 H3C SHELL/4/LOGIN:
Trap 1.3.6.1.4.1.25506.2.2.1.1.3.0.1
%Apr 26 12:00:31:094 2000 H3C SHELL/5/SHELL_LOGIN: Console logged in from aux0.
所有步骤到这里就完成了，大家以后碰到此类问题可以自己尝试解决一下，实在不行再返厂维修。