我一个wa2620i-agn的ap被我刷为了胖ap版本，我应该在怎么刷回去呢

1.1.1  AP胖切瘦配置案例（有WX）

操作风险提示：AP胖切瘦有风险，操作不当或者意外断电会导致设备故障，操作需谨慎。

1、在AP上执行如下操作前，必须确认wx上配置无问题、wx可以支持添加wa5530、使能了Dhcp server等。

WX配置可以参考《2.2.02 WAC380系列产品AP二层注册、无线加密配置方法（WEB版）》

2、console口登录操作，console口登录方法参考《1.03 设备管理-Console登录方法》

在AP重启的时候按住不停地按Ctrl+B进入设备的bootroom菜单，以下标黑部分为设备自动打印部分。

==========================<EXTENDED-BOOTWARE MENU>=============

|<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> Skip Authentication for Console Login                                 |

|<9> Storage Device Operation                                              |

|<0> Reboot                                                                |

===================================================================

Ctrl+Z: Access EXTENDED ASSISTANT MENU

Ctrl+F: Format File System

Ctrl+C: Display Copyright

Ctrl+Y: Change AP Mode

Enter your choice(0-9): 此处按键 Ctrl+F，作用：格式化flash

Warning:All files on flash will be lost! Are you sure to format? [Y/N]Y //输入Y

...........................................................................................................................

Format success.

==========================<EXTENDED-BOOTWARE MENU>=============

|<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> Skip Authentication for Console Login                                 |

|<9> Storage Device Operation                                              |

|<0> Reboot                                                                |

===================================================================

Ctrl+Z: Access EXTENDED ASSISTANT MENU

Ctrl+F: Format File System

Ctrl+C: Display Copyright

Ctrl+Y: Change AP Mode

Enter your choice(0-9):  //按键Ctrl+Y，设置ap胖模式或者瘦模式

Please select the new mode

Current mode is Fat  //提示当前是fat胖模式

=====================================================================

|NO.  Mode                                                          |

|1    Fat Mode                                                      |

|2    Fit Mode                                                      |

|0    Exit                                                          |

=====================================================================

Enter your choice(0-2):2   //输入2，即fit瘦模式

Warning:Change from fat mode to fit mode formats the storage medium! Are

you sure to continue ? [Y/N]Y  //输入Y，确认切换成fit瘦模式

......................................................................................

Formatted the storage medium successfully!

Changed to fit mode successfully!  //修改成fit瘦模式成功。

此时将ap和wx网络连通，ap上电启动获取ip地址后，会主动向ac获取版本文件自动更新到ap的flash中运行。

1.1.2  AP胖切瘦配置案例（无WX）

操作风险提示：AP胖切瘦有风险，操作不当或者意外断电会导致设备故障，操作需谨慎。此情况下升级需在PC上搭建TFTP Server（推荐用户使用3CDaemon搭建TFTP服务器）

1、先下载WA5300系列瘦版本，从WX的flash apimge目录下导出wa5300.ipe文件到电脑桌面上，具体步骤如下：

电脑通过网线连接到wx内网，电脑网卡设置为：192.168.0.1 255.255.255.0，设置和wx一个网段，保证电脑和wx网络可达，如下例子打开TFTP服务器， TFTP服务器目录指向电脑桌面，然后点击确定。

Wx命令行下输入

<WX>cd apimge/

<WX>tftp 192.168.0.1 put wa5300.ipe

此时，已经把wx上的wa5300.ipe软件版本下载到电脑桌面上了

2、电脑通过网线连接到ap的一个网口，电脑网卡设置为：192.168.0.1 255.255.255.0，如下例子打开TFTP服务器，把wa5300.ipe软件版本放到电脑桌面上，TFTP服务器目录指向电脑桌面，然后点击确定。

3、console口操作，console口登录方法参考《1.03 设备管理-Console登录方法》

在AP重启的时候按住不停地按Ctrl+B进入设备的bootroom菜单，以下标黑部分为设备自动打印部分。

==========================<EXTENDED-BOOTWARE MENU>=============

|<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> Skip Authentication for Console Login                                 |

|<9> Storage Device Operation                                              |

|<0> Reboot                                                                |

===================================================================

Ctrl+Z: Access EXTENDED ASSISTANT MENU

Ctrl+F: Format File System

Ctrl+C: Display Copyright

Ctrl+Y: Change AP Mode

Enter your choice(0-9): 此处按键 Ctrl+F，作用：格式化flash

Warning:All files on flash will be lost! Are you sure to format? [Y/N]Y //输入Y

...........................................................................................................................

Format success.

==========================<EXTENDED-BOOTWARE MENU>=============

|<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> Skip Authentication for Console Login                                 |

|<9> Storage Device Operation                                              |

|<0> Reboot                                                                |

===================================================================

Ctrl+Z: Access EXTENDED ASSISTANT MENU

Ctrl+F: Format File System

Ctrl+C: Display Copyright

Ctrl+Y: Change AP Mode

Enter your choice(0-9):  //按键Ctrl+Y，设置ap胖模式或者瘦模式

Please select the new mode

Current mode is Fat  //提示当前是fat瘦模式

===================================================================

|NO.  Mode                                                                 |

|1    Fat Mode                                                             |

|2    Fit Mode                                                             |

|0    Exit                                                                 |

===================================================================

Enter your choice(0-2):2 //输入2，即fit瘦模式

Changed to fit mode successfully!  //修改成fit瘦模式成功

==========================<EXTENDED-BOOTWARE MENU>=============

|<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> Skip Authentication for Console Login                                 |

|<9> Storage Device Operation                                              |

|<0> Reboot                                                                |

===================================================================

Ctrl+Z: Access EXTENDED ASSISTANT MENU

Ctrl+F: Format File System

Ctrl+C: Display Copyright

Ctrl+Y: Change AP Mode

Enter your choice(0-9): 3  //进入以太口子菜单

==========================<Enter Ethernet SubMenu>====================

|Note:the operating device is flash                                        |

|<1> Download Image Program To SDRAM And Run                               |

|<2> Update Main Image File                                                |

|<3> Update Backup Image File                                              |

|<4> Download Files(*.*)                                                   |

|<5> Modify Ethernet Parameter                                             |

|<0> Exit To Main Menu                                                     |

|<Ensure The Parameter Be Modified Before Downloading!>                    |

===================================================================

Enter your choice(0-5): 5  //修改以太口参数

==========================<ETHERNET PARAMETER SET>==============

|Note:       "." = Clear field.                                            |

|            "-" = Go to previous field.                                   |

|         Ctrl+D = Quit.                                                   |

===================================================================

Protocol (FTP or TFTP) :ftp  TFTP

//忽略输出内容，直接输入TFTP，然后回车

Load File Name         : wa5300.ipe

//忽略输出内容，直接输入wa5300.ipe，然后回车

Target File Name       : wa5300.ipe

//忽略输出内容，直接输入wa5300.ipe，然后回车

Server IP Address      :192.168.0.1  

//忽略输出内容，直接输入电脑主机的 IP，比如192.168.0.1，然后回车

Local IP Address       :192.168.0.50

//忽略输出内容，直接输入和电脑主机的ip同一网段，比如192.168.0.50，然后回车

Gateway IP Address     :0.0.0.0

//忽略输出内容，直接回车

备注：注意给电脑手动配置一个与AP同网段的IP地址，保证电脑与AP路由可达 

==========================<Enter Ethernet SubMenu>====================

|Note:the operating device is flash                                        |

|<1> Download Image Program To SDRAM And Run                               |

|<2> Update Main Image File                                                |

|<3> Update Backup Image File                                              |

|<4> Download Files(*.*)                                                   |

|<5> Modify Ethernet Parameter                                             |

|<0> Exit To Main Menu                                                     |

|<Ensure The Parameter Be Modified Before Downloading!>                    |

===================================================================

Enter your choice(0-5): 2  //输入2，更新版本

Loading.................................................................................................................................Done.

18165760 bytes downloaded!

Image file wa5300-boot.bin is self-decompressing...

Saving file flash:/wa5300-boot.bin .............Done.

Image file wa5300-system.bin is self-decompressing...

Saving file flash:/wa5300-system.bin .......................................

Done. 

==========================<Enter Ethernet SubMenu>====================

|Note:the operating device is flash                                        |

|<1> Download Image Program To SDRAM And Run                               |

|<2> Update Main Image File                                                |

|<3> Update Backup Image File                                              |

|<4> Download Files(*.*)                                                   |

|<5> Modify Ethernet Parameter                                             |

|<0> Exit To Main Menu                                                     |

|<Ensure The Parameter Be Modified Before Downloading!>                    |

===================================================================

Enter your choice(0-5): 0  //输入0返回

==========================<EXTENDED-BOOTWARE MENU>=============

|<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> Skip Authentication for Console Login                                 |

|<9> Storage Device Operation                                              |

|<0> Reboot                                                                |

===================================================================

Ctrl+Z: Access EXTENDED ASSISTANT MENU

Ctrl+F: Format File System

Ctrl+C: Display Copyright

Ctrl+Y: Change AP Mode

Enter your choice(0-9): 0  //输入0，重启AP

System is starting...

设备启动完成

Press ENTER to get started.

<H3C>   //升级成功

%Dec 15 18:56:54:395 2017 H3C SHELL/5/SHELL_LOGIN: Console logged in from con0.

建议与总结：

先Ctrl+F格式化flash，再Ctrl+Y选择胖模式，最后加载fit版本。