AP Mode Switching Examples

Applicable Scope

This example applies to Fat, Fit, or cloud APs that use the same system software package.

Applicable version: V200R019C10 or later

Applicable model: all AP models except RUs

Networking Scenario

To use a new AP to independently provide Wi-Fi coverage, you need to switch the AP to the Fat mode and deploy services through the web platform or other way.

Connect the AP to a PC through an Ethernet cable in a proper mode, as shown in Figure 19-23.

If the AP supports DC power supply and works with a power adapter, connect the AP to a PC directly through an Ethernet cable. If the AP does not support DC power supply or no adapter is available, supply PoE power to the AP. In this case, connect the AP to the PC through a PoE device.

Figure 19-23 AP-PC connection diagram

Quick Configuration

This section helps you quickly configure an AP, without the need to read the entire document. If you are not familiar with the product or operation, read the detailed guidance in the following sections.

Configuration Procedure on the CLI

1. Prepare the environment.

   The following is used as an example. Prepare your environment based on site requirements.

   Device	Description
   PC	Operating system: Windows 10 STelnet client: PuTTY (third-party software)
   AP	Model: AirEngine 6760R-51 Version: V200R019C10SPC300 Default information: IP address: 169.254.1.1 STelnet login port number: 22 User names and passwords: The default username and password are available in WLAN Default Usernames and Passwords (Enterprise Network or Carrier). If you have not obtained the access permission of the document, see Help on the website to find out how to obtain it.

   # Power on the AP. The indicator is green for around 2 minutes during the startup. When the indicator blinks, the AP is started successfully.

   # Set the IP address of the PC to 169.254.1.100 and mask to 255.255.0.0 so that the PC and AP are located on the same network segment.

2. Check AP information.

   # Open PuTTY on the PC, enter the IP address and port number of the AP, select the SSH mode, and click Open. If a key pair information prompt is displayed, click Yes.

   # When the following information is displayed, the AP is connected successfully. Enter the user name and password to log in to the AP.

   login as: admin
   Further authentication required
   admin@169.254.1.1's password:       //For information security, characters you entered are invisible.
   
   Info: Current mode: Fit (managed by the AC).  //The current mode is Fit.
   Info: You are advised to change the password to ensure security.
   <Huawei>

   # Check AP information.

   <Huawei> display version
   Huawei Versatile Routing Platform Software
   VRP (R) software, Version 5.170 (AirEngine6760R-51 FIT V200R019C10SPC300)  //Model, working mode, and version
   ...

3. Start the switching.

   # Switch the AP mode to Fat. Wait until the AP restart is complete. The AP restart takes around 2 minutes.

   <Huawei> system-view
   [Huawei] ap-mode-switch fat
   Warning: The system will reboot and start in fat mode of V200R019C10SPC300. Continue? (y/n)[n]:y
   Info: system is rebooting ,please wait.................

4. Verify the switching.

   # Log in to the AP to view AP information. The AP is working in Fat mode.

   login as: admin
   Further authentication required
   admin@169.254.1.1's password:
   
   Info: Current mode: Fat (working independently).
   Warning: The default country code is CN. Ensure that AP radio attributes comply 
   with laws and regulations in different countries. Do you want to change the 
   country code? [Y/N]:n
   Info: You are advised to change the password to ensure security.
   <Huawei> system-view
   [Huawei] display version
   Huawei Versatile Routing Platform Software
   VRP (R) software, Version 5.170 (AirEngine6760R-51 FAT V200R019C10SPC300)
   ...

Configuration Procedure on the Web System

1. Prepare the environment.

   The following is used as an example. Prepare your environment based on site requirements.

   Device	Description
   PC	Operating system: Windows 10 Browser: Google Chrome IP address: 169.254.1.100
   AP	Model: AirEngine 6760R-51 Version: V200R019C10SPC300 Default information: IP address: 169.254.1.1 User names and passwords: The default username and password are available in WLAN Default Usernames and Passwords (Enterprise Network or Carrier). If you have not obtained the access permission of the document, see Help on the website to find out how to obtain it.

   # Power on the AP. The indicator is green for around 2 minutes during the startup. When the indicator blinks, the AP is started successfully.

   # Set the IP address of the PC to 169.254.1.100 and mask to 255.255.0.0 so that the PC and AP are located on the same network segment.

2. Start the switching.

   # Enter the IP address of the AP in the browser of the PC. Enter the user name and password to log in to the web platform. If a security connection prompt is displayed, continue with the operation.

   # Choose Monitoring > Summary. The Summary page is displayed.

   # Set Working mode to FAT or Cloud, and click Apply. The working mode of the AP is switched to Fat or cloud.

   # In the dialog box that is displayed, click OK. The AP automatically restarts and starts to switch the mode.

3. Verify the switching.

   # Log in to the AP again to view AP information on the web system. The AP is working in Fat mode.

   To switch back to the Fit mode, select Fit Mode in the upper right corner of the web page.

Applicable Scope

This example is applicable to APs with factory defaults. APs work in Fit mode by default.

With factory defaults, the local configuration of an AP is not modified, and the AP has not obtained the new configuration from an AC. If an AP has been upgraded, has been connected to an AC, or its working mode has been switched, the AP's working mode cannot be directly switched.

Applicable version: V200R007 and later versions

Applicable models:

For other models, see Example for Switching a Fit AP to the Fat Mode Using FTP.

Networking Scenario

To use a new AP to independently provide Wi-Fi coverage, you need to switch the AP to the Fat mode and deploy services through the web platform or other way.

Connect the AP to a PC through an Ethernet cable in a proper mode, as shown in Figure 19-24.

If the AP supports DC power supply and works with a power adapter, connect the AP to a PC directly through an Ethernet cable. If the AP does not support DC power supply or no adapter is available, supply PoE power to the AP. In this case, connect the AP to the PC through a PoE device.

Figure 19-24 AP-PC connection diagram

Quick Configuration

This section helps you quickly configure an AP, without the need to read the entire document. If you are not familiar with the product or operation, read the detailed guidance in the following sections.

Configuration Procedure

1. Prepare the environment.

   The following is used as an example. Prepare your environment based on site requirements.

   Device	Description
   PC	Operating system: Windows 7 STelnet client: PuTTY (third-party software)
   AP	Model: AP4050DN Version: V200R007C20 Default information: IP address: 169.254.1.1 STelnet login port number: 22 User names and passwords: The default username and password are available in WLAN Default Usernames and Passwords (Enterprise Network or Carrier). If you have not obtained the access permission of the document, see Help on the website to find out how to obtain it.

   # Power on the AP. The indicator is green for around 2 minutes during the startup. When the indicator blinks, the AP is started successfully.

   # Set the IP address of the PC to 169.254.1.100 and mask to 255.255.0.0 so that the PC and AP are located on the same network segment.

2. Check AP information.

   # Open PuTTY on the PC, enter the IP address and port number of the AP, select the SSH mode, and click Open. If a key pair information prompt is displayed, click Yes.

   # When the following information is displayed, the AP is connected successfully. Enter the user name and password to log in to the AP.

   login as: admin
   Further authentication required
   admin@169.254.1.1's password:    //For information security, characters you entered are invisible.
   
   Info: Current mode: Fit (managed by the AC).  //The current mode is Fit.
   Info: You are advised to change the password to ensure security.
   <Huawei>

   # Check AP information.

   <Huawei> display version
   Huawei Versatile Routing Platform Software
   VRP (R) software, Version 5.170 (AP4050DN FIT V200R007C20SPCa00)  //Model, working mode, and version
   ...

3. Start the switching.

   # Switch the AP mode to Fat. Wait until the AP restart is complete. The AP restarts, which takes around 2 minutes.

   <Huawei> system-view
   [Huawei] ap-mode-switch fat
   Warning: The system will reboot and start in fat mode of V200R007C20SPCa00. Continue? (y/n)[n]:y
   Info: system is rebooting ,please wait.................

4. Verify the switching.

   # Log in to the AP to view AP information. The AP is working in Fat mode.

   login as: admin
   Further authentication required
   admin@169.254.1.1's password: 
   
   Info: Current mode: Fat (working independently).
   Warning: The default country code is CN. Ensure that AP radio attributes comply 
   with laws and regulations in different countries. Do you want to change the 
   country code? [Y/N]:n
   Info: You are advised to change the password to ensure security.
   <Huawei> system-view
   [Huawei] display version
   Huawei Versatile Routing Platform Software
   VRP (R) software, Version 5.170 (AP4050DN FAT V200R007C20SPCa00)
   ...

FAQs

An error message is displayed when you run a mode switching command.

[Huawei] ap-mode-switch fat
Error: The fat mode does not exist. To switch to the fat AP mode, run the ap-mode-switch fat tftp/ftp/sftp command. 

The AP is not in factory defaults and therefore cannot be switched to the Fat mode by one click. In this case, switch the working mode of the AP using SFTP. For details, see Example for Switching a Fit AP to the Fat Mode Using SFTP.

Applicable Scope

Applicable version: V200R007 and later versions

Applicable models:

For APs in factory defaults, it is recommended that you switch the working mode of an AP by referring to Example for Switching a Fit AP with Factory Defaults to the Fat Mode by One Click.

For other models, see Example for Switching a Fit AP to the Fat Mode Using FTP.

This example is also applicable to switching a Fit AP to the Fat mode using FTP or TFTP. Note the following differences:

• Configure the FTP or TFTP server software on the PC, which is not mentioned here.
• Different parameters are used in the command for switching the AP mode and are described in the procedure.

Networking Scenario

To use a new AP to independently provide Wi-Fi coverage, you need to switch the AP to the Fat mode and deploy services through the web platform or other way.

Connect the AP to a PC through an Ethernet cable in a proper mode, as shown in Figure 19-25.

If the AP supports DC power supply and works with a power adapter, connect the AP to a PC directly through an Ethernet cable. If the AP does not support DC power supply or no adapter is available, supply PoE power to the AP. In this case, connect the AP to the PC through a PoE device.

When the PC serves as an SFTP server, prepare the Fat AP software package for the AP to obtain through SFTP.

Figure 19-25 AP-PC connection diagram

Quick Configuration

This section helps you quickly configure an AP, without the need to read the entire document. If you are not familiar with the product or operation, read the detailed guidance in the following sections.

Configuration Procedure

1. Prepare the environment.

   The following is used as an example. Prepare your environment based on site requirements.

   Device	Description
   PC	Operating system: Windows 7 STelnet client: PuTTY (third-party software) SFTP server
   AP	Model: AP4050DN Version: V200R007C20 Default information: IP address: 169.254.1.1 STelnet login port number: 22 User names and passwords: The default username and password are available in WLAN Default Usernames and Passwords (Enterprise Network or Carrier). If you have not obtained the access permission of the document, see Help on the website to find out how to obtain it.

   # Power on the AP. The indicator is on for around 2 minutes during the startup. When the indicator blinks, the AP is started successfully.

   # Log in to Huawei enterprise technical support website (support.huawei.com/e), download the Fat AP software package, and store the package on the PC.

   # Set the IP address of the PC to 169.254.1.100 and mask to 255.255.0.0 so that the PC and AP are located on the same network segment.

   # Open the SFTP software on the PC, and set SFTP server parameters:

   • Set the IP address and port number for the client to access the server.
   • Set the authentication mode so that the password is required for the client to access the server.
   • Select a local directory to provide file services for the client. Store the downloaded software package in this directory.
   • Add a user to verify identity information entered by the client to ensure access security.
   • Enable the SFTP service.

2. Check AP information.

   # Open PuTTY on the PC, enter the IP address and port number of the AP, select the SSH mode, and click Open. If a key pair information prompt is displayed, click Yes.

   # When the following information is displayed, the AP is connected successfully. Enter the user name and password to log in to the AP.

   login as: admin
   Further authentication required
   admin@169.254.1.1's password:    //For information security, characters you entered are invisible.
   
   Info: Current mode: Fit (managed by the AC).  //The current mode is Fit.
   Info: You are advised to change the password to ensure security.
   <Huawei>

   # Check AP information.

   <Huawei> display version
   Huawei Versatile Routing Platform Software
   VRP (R) software, Version 5.170 (AP4050DN FIT V200R007C20SPCa00)  //Model, working mode, and version
   ...

3. Start the switching.

   # Enable the first-time authentication function on the AP working as an SSH client.

   <Huawei> system-view
   [Huawei] ssh client first-time enable

   # Switch the AP mode to Fat. Set the file name (including the extension) of the target software package, IP address, user name, and password of the SFTP server. The AP will restart and the restart takes around 2 minutes.

   [Huawei] ap-mode-switch fat sftp Fat&CloudAP4050DN_V200R007C20SPCa00.bin 169.254.1.100 admin YsHsjx_202206
   Warning: The system will reboot and start in fat mode of V200R007C20SPCa00. Continue? (y/n)[n]:y
   Warning: Do Not Power-off!
   ..........................................................................................................
   End of file......
   
   Info: system is rebooting ,please wait...

   If FTP or TFTP is used, specify the following parameters in the switching command (as an example):

   • FTP mode: ap-mode-switch fat ftp Fat&CloudAP4050DN_V200R007C20SPCa00.bin 169.254.1.100 admin YsHsjx_202206
   • TFTP mode: ap-mode-switch fat tftp Fat&CloudAP4050DN_V200R007C20SPCa00.bin 169.254.1.100
   • In V200R019C10 and later versions, the file name extension of the AP software package is changed from .bin to .cc.

4. Verify the switching.

   # Log in to the AP to view AP information. The AP is working in Fat mode.

   login as: admin
   Further authentication required
   admin@169.254.1.1's password: 
   
   Info: Current mode: Fat (working independently).
   Warning: The default country code is CN. Ensure that AP radio attributes comply 
   with laws and regulations in different countries. Do you want to change the 
   country code? [Y/N]:n
   Info: You are advised to change the password to ensure security.
   <Huawei> system-view
   [Huawei] display version
   Huawei Versatile Routing Platform Software
   VRP (R) software, Version 5.170 (AP4050DN FAT V200R007C20SPCa00)
   ...

FAQ

An error message is displayed when you run a mode switching command.

[Huawei] ap-mode-switch fat sftp Fat&CloudAP4050DN_V200R007C20SPCa00.bin 169.254.1.100 admin YsHsjx_202206
Warning: The system will reboot and start in fat mode of V200R007C20SPCa00. Continue? (y/n)[n]:y
Warning: Do Not Power-off!
.
Error: Upgrade failed due to a failure in downloading the version file.

The public key for the SSH server is not configured on the AP. When the AP accesses the SSH server for the first time, authentication fails.

Run the ssh client first-time enable command in the system view to allow the AP to access the server. The public key will be saved and used for authentication on the server.

[Huawei] ssh client first-time enable

Applicable Scope

Applicable version: V200R007 and later versions

Applicable models:

This example is also applicable to switching a Fit AP to the Fat mode using TFTP. Note the following differences:

• Configure the TFTP client software on the PC, which is not mentioned here.
• Different parameters are used in the command for switching the AP mode and are described in the procedure.

Networking Scenario

To use a new AP to independently provide Wi-Fi coverage, you need to switch the AP to the Fat mode and deploy services through the web platform or other way.

Connect the AP to a PC through an Ethernet cable in a proper mode, as shown in Figure 19-26.

If the AP supports DC power supply and works with a power adapter, connect the AP to a PC directly through an Ethernet cable. If the AP does not support DC power supply or no adapter is available, supply PoE power to the AP. In this case, connect the AP to the PC through a PoE device.

When the PC serves as an FTP server, prepare the Fat AP software package for the AP to obtain through FTP.

Figure 19-26 AP-PC connection diagram

Quick Configuration

This section helps you quickly configure an AP, without the need to read the entire document. If you are not familiar with the product or operation, read the detailed guidance in the following sections.

Configuration Procedure

1. Prepare the environment.

   The following is used as an example. Prepare your environment based on site requirements.

   Device	Description
   PC	Operating system: Windows 7 STelnet client: PuTTY (third-party software) FTP server
   AP	Model: AP5030DN Version: V200R007C20 Default information: IP address: 169.254.1.1 STelnet login port number: 22 User names and passwords: The default username and password are available in WLAN Default Usernames and Passwords (Enterprise Network or Carrier). If you have not obtained the access permission of the document, see Help on the website to find out how to obtain it.

   # Power on the AP. The indicator is on for around 2 minutes during the startup. When the indicator blinks, the AP is started successfully.

   # Set the IP address of the PC to 169.254.1.100 and mask to 255.255.0.0 so that the PC and AP are located on the same network segment.

   # Set FTP server parameters.

   # Log in to Huawei enterprise technical support website (support.huawei.com/e), download the Fat AP software package, and store the package on the FTP directory.

2. Check AP information.

   # Open PuTTY on the PC, enter the IP address and port number of the AP, select the SSH mode, and click Open. If a key pair information prompt is displayed, click Yes.

   # When the following information is displayed, the AP is connected successfully. Enter the user name and password to log in to the AP.

   login as: admin
   Further authentication required
   admin@169.254.1.1's password:    //For information security, characters you entered are invisible.
   
   Info: Current mode: Fit (managed by the AC).  //The current mode is Fit.
   Info: You are advised to change the password to ensure security.
   <Huawei>

   # Check AP information.

   <Huawei> display version
   Huawei Versatile Routing Platform Software
   VRP (R) software, Version 5.170 (AP5030DN FIT V200R007C20SPCa00)  //Model, working mode, and version
   ...

3. Start the switching.

   # Prepare the switching.

   [Huawei] ap-mode-switch prepare
   Info: Prepare is ok, Use ap-mode-switch command to switch to fat ap. 

   # Verify before the switching.

   [Huawei] ap-mode-switch check
   Info: Ap-mode-switch check ok.

   # Switch the AP mode to Fat. Set the file name (including the extension) of the target software package, IP address, user name, and password of the FTP server. The AP will restart and the restart takes around 2 minutes.

   [Huawei] ap-mode-switch ftp FatAP5X30XN_V200R007C20SPCa00.bin 169.254.1.100 admin YsHsjx_202206
   Warning: Do Not Power-off.........
   Info: Upgrade upgrade-assistant-package successfully!
   Warning: System will reboot, if you want to switch to upgrade-assistant-package.
    Are you sure to execute these operations ? [Y/N]: y

   If TFTP is used, specify the following parameters in the switching command (as an example).

   ap-mode-switch tftp FatAP5X30XN_V200R007C20SPCa00.bin 169.254.1.100

   In V200R019C10 and later versions, the file name extension of the AP software package is changed from .bin to .cc.

4. Verify the switching.

   # Log in to the AP to view AP information. The AP is working in Fat mode.

   login as: admin
   Further authentication required
   admin@169.254.1.1's password: 
   
   Info: Current mode: Fat (working independently).
   Warning: The default country code is CN. Ensure that AP radio attributes comply 
   with laws and regulations in different countries. Do you want to change the 
   country code? [Y/N]:n
   Info: You are advised to change the password to ensure security.
   <Huawei> system-view
   [Huawei] display version
   Huawei Versatile Routing Platform Software
   VRP (R) software, Version 5.170 (AP5030DN FAT V200R007C20SPCa00)
   ...

Applicable Scope

All APs that properly go online on an AC

Applicable version: V200R007 and later versions

Applicable models: APs supporting both the Fit and Fat modes

In centralized management mode, you can manage the upgrade and mode switching for a single AP or APs of the same model or in the same group on the AC. This example describes how to switch the working mode of a single AP.

Networking Scenario

Log in to the AC through the web platform, without the need to adjust the networking or cable connection.

Quick Configuration

This section helps you quickly configure an AP, without the need to read the entire document. If you are not familiar with the product or operation, read the detailed guidance in the following sections.

Configuration Procedure

1. Prepare the environment.

   The following is used as an example. Prepare your environment based on site requirements.

   Device	Description
   PC	Operating system: Windows 7 Browser: Google Chrome IP address: 169.254.1.100
   AC	Model: AC6605 Version: V200R007C20 Management IP address: 169.254.1.1 Administrator account: Telnet and web platform User name: admin Password: YsHsjx_202206
   AP	Model: AP4050DN Version: V200R007C20 Information for the radio used by the AP to go online: IP address: 192.168.10.227 STelnet login port number: 22 (default) User names and passwords: The default username and password are available in WLAN Default Usernames and Passwords (Enterprise Network or Carrier). If you have not obtained the access permission of the document, see Help on the website to find out how to obtain it.

   # Log in to Huawei enterprise technical support website (support.huawei.com/e), download the Fat AP software package, and store the package on the PC.

2. Check AP information.

   # Enter the IP address of the AC in the browser of the PC. Enter the user name and password to log in to the web platform. If a security connection prompt is displayed, continue with the operation.

   # Choose Monitoring > AP. Search for the target AP in AP List, check AP information, and record the IP address of the AP. Continue with the following operations only when the AP status is normal or ver-mismatch.

3. Load the software package to the AP.
   • V200R007C20

     # Choose Maintenance > AP Maintenance > AP Upgrade, select the software package stored on the PC, and upload the upgrade file to the AC.

     # Under AP Upgrade, select the target AP.

     # Select the target software package and click Upgrade.

     # Click the Upgrade Status tab to check the AP upgrade progress. The upgrade takes around 2 minutes.

   • V200R008

     # Choose Maintenance > AP Maintenance > AP Upgrade, and click New Upgrade Task under AP Upgrade Configuration.

     # In the New Upgrade Task dialog box, set upgrade parameters and click OK.

     Click next to AP name and select the AP to be upgraded in the AP list. Click next to Select a file to upload the Fat AP software package or select the uploaded Fat AP software package.

     # Click the APs Being Upgraded tab to check the AP upgrade progress. The upgrade takes around 2 minutes.

   • V200R009 and later versions (V200R010 is used as an example.)

     # Choose Maintenance > Device Upgrade > AP Upgrade, and click New Upgrade Task under AP Upgrade Configuration.

     # In the New Upgrade Task dialog box, set upgrade parameters and click OK.

     Click next to AP name and select the AP to be upgraded in the AP list. Click next to Select a file to upload the Fat AP software package or select the uploaded Fat AP software package.

     # Click the APs Being Upgraded tab to check the AP upgrade progress. The upgrade takes around 2 minutes.

4. Start the switching.

   # Go to the AP Config page.

   # Select AP, click Modify, select AP mode as fat, and click OK. The AP restarts, which takes around 2 minutes.

5. Verify the switching.

   # Log in to the AP to view AP information. The AP is working in Fat mode.

   login as: admin
   Further authentication required
   admin@169.254.1.1's password: 
   
   Info: Current mode: Fat (working independently).
   Warning: The default country code is CN. Ensure that AP radio attributes comply 
   with laws and regulations in different countries. Do you want to change the 
   country code? [Y/N]:n
   Info: You are advised to change the password to ensure security.
   <Huawei> system-view
   [Huawei] display version
   Huawei Versatile Routing Platform Software
   VRP (R) software, Version 5.170 (AP5030DN FAT V200R007C20SPCa00)
   ...

Applicable Scope

It is recommended that the AP mode be switched using a method described in the preceding part. If the switching fails, consider switching the AP mode in Uboot mode.

Applicable version: versions earlier than V200R019C10

Applicable model: APs that support the Fit and Fat modes and have a console port

Networking Scenario

If the mode switching using the preceding methods fails, you can use the Uboot mode to switch the AP mode.

Connect the AP to a PC through an Ethernet cable in a proper mode, as shown in Figure 19-27.

If the AP supports DC power supply and works with a power adapter, connect the AP to a PC directly through an Ethernet cable. If the AP does not support DC power supply or no adapter is available, supply PoE power to the AP. In this case, connect the AP to the PC through a PoE device.

When the PC serves as a TFTP server, prepare the Fat AP software package for the AP to obtain through TFTP.

Figure 19-27 AP-PC connection diagram

Quick Configuration

This section helps you quickly configure an AP, without the need to read the entire document. If you are not familiar with the product or operation, read the detailed guidance in the following sections.

Configuration Procedure

1. Prepare the environment.

   The following is used as an example. Prepare your environment based on site requirements.

   Device	Description
   PC	Operating system: Windows 7 Terminal emulation software: PuTTY (third-party software) TFTP server software
   AP	Model: AP4050DN Version: V200R007C20 Default information: Baud rate (B): 9600 Data bits (D): 8 Parity (P): None Stop bits (S): 1 Flow control (F): None Uboot password: The default username and password are available in WLAN Default Usernames and Passwords (Enterprise Network or Carrier). If you have not obtained the access permission of the document, see Help on the website to find out how to obtain it.

   # Set the PC IP address to 192.168.56.1.

   # Set TFTP server parameters.

   • Open the TFTP software on the PC. Select a local directory to provide file services for clients.

   # Log in to Huawei enterprise technical support website (support.huawei.com/e), download the Fat AP software package, and store the package on the FTP directory.

2. Enter the Uboot CLI view and configure the AP to communicate with the TFTP server.

   # Connect the AP to the PC through a serial cable. Check the COM port used by the serial port on the PC.

   # Open PuTTY on the PC, set Connection type to Serial, enter the COM port, and click Open.

   # Restart the AP.

   # Press F within 3 seconds when the following information is displayed to enter the Uboot CLI view:

   Press f or F  to stop Auto-Boot in 3 seconds:  3  
   Password for uboot cmd line :     //Enter the Uboot password.
   ar7240>

   # Configure IP addresses for the AP and TFTP server to be in the same network segment so that the AP can obtain the target software package from the TFTP server.

   ar7240> setenv ipaddr 192.168.56.2  //IP address of the AP
   ar7240> setenv serverip 192.168.56.1   //IP address of the TFTP server
   ar7240> saveenv  
   Saving Environment to Flash...  
   Erasing Flash...Writing to Flash... done

3. Start the switching.

   # Switch the AP mode to Fat. Set the file name (including the file name extension) of the target software package.

   In V200R019C10 and later versions, the file name extension of the AP software package is changed from .bin to .cc.

   ar7240> update system Fat&CloudAP4050DN_V200R007C20.bin
   Using eth0 device                                                               
   TFTP from server 192.168.56.1; our IP address is 192.168.56.2                   
   Filename 'Fat&CloudAP4050DN_V200R007C20SPCh00.bin'.                             
   Load address: 0x84000000                                                        
   Loading: #################################################################      
              #################################################################      
              #################################################################      
              ##################                                                     
   done                                                                            
   ......
   ......                                     
   The current device is a FIT AP, but the upgrade package is for a FAT&CLOUD AP. C
   ontinue? [y/n]:y                                                                
   Warning: Do Not Power-Off!
   ................................................................................
   ............Done                                                                
   Warning: Do Not Power-Off!                                                      
   ...Done                                                                         
   Upgrade nor Boot Successful                                                     
   Writing Version to Flash...                                                     
   Set Boot KernelA Address: 0x1c0f000                                             
   Erasing SPI flash...Writing to SPI flash...done                                 
   Warning: The backup software system of the AP supports the fat and cloud modes. 
   To retain the default mode (fat), please input 'Y' or 'y'. Alternatively, please
    select a mode (fat/cloud):fat      //To switch to the cloud mode, enter cloud.
   Info: The system will start in default(Fat) mode. Please restart the system.    
   Upgrade Firmware to A Successful

   # Restart the AP, which takes about 2 minutes.

   ar7240> reset
   Resetting...

4. Verify the switching.

   # Log in to the AP to view AP information. The AP is working in Fat mode.

   login as: admin
   Further authentication required
   admin@169.254.1.1's password:  
   
   Info: Current mode: Fat (working independently).
   Warning: The default country code is CN. Ensure that AP radio attributes comply 
   with laws and regulations in different countries. Do you want to change the 
   country code? [Y/N]:n
   Info: You are advised to change the password to ensure security.
   <Huawei> system-view
   [Huawei] display version
   Huawei Versatile Routing Platform Software
   VRP (R) software, Version 5.170 (AP4050DN FAT V200R007C20SPCh00)
   ...