Fixing Burning Issues

What should I do if Error: Opening COMxx: Access denied is displayed when I start burning

• Symptom

  Error: Opening COMxx: Access denied is displayed after clicking Burn and selecting a serial port.

  Figure 1 Failed to open the serial port

  

• Possible Causes

  The serial port is in use.

• Solution

1. Search for the terminal using serial-xx from the drop-down list in the TERMINAL panel.

   Figure 2 Checking whether the serial port is in use

   

2. Click the dustbin icon as shown below to disable the terminal using the serial port.

   Figure 3 Disabling the terminal using the serial port

   

3. Click Burn, select the serial port, and start burning images again.

   Figure 4 Restarting the burning task

   

What should I do when Windows-based PC failed to be connected to the board?

• Symptom

  The file image cannot be obtained after clicking Burn and selecting a serial port.

  Figure 5 Failed to obtain the file image due to network disconnection

  

• Possible Causes

  The board is disconnected from the Windows-based PC.

  Windows Firewall does not allow Visual Studio Code to access the network.

• Solution

1. Check whether the network cable is properly connected.

2. Click Windows Firewall.

   Figure 6 Network and firewall settings

   

3. Click Firewall & network protection, and on the displayed page, click Allow an app through the firewall.

   Figure 7 Firewall & network protection

   

4. Select Visual Studio Code.

   Figure 8 Selecting Visual Studio Code

   

5. Select the Private and Public network access rights for Visual Studio Code.

   Figure 9 Allowing Visual Studio Code to access the network

   

What should I do when the image failed to be burnt?

• Symptom

  The burning status is not displayed after clicking Burn and selecting a serial port.

• Possible Causes

  The IDE is not restarted after the DevEco plug-in is installed.

• Solution

  Restart the IDE.