harmony(鸿蒙)Fixing Burning Issues

Fixing Burning Issues

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

**Figure 1** Failed to open the serial port

![en-us_image_0000001271202461](figures/en-us_image_0000001271202461.png)

The serial port is in use.

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

Figure 3 Disabling the terminal using the serial port
Click Burn, select the serial port, and start burning images again.

Figure 4 Restarting the burning task

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

![en-us_image_0000001226922306](figures/en-us_image_0000001226922306.png)

The board is disconnected from the Windows-based PC.

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

Solution
Check whether the network cable is properly connected.
Click Windows Firewall.

Figure 6 Network and firewall settings
Click Firewall & network protection, and on the displayed page, click Allow an app through the firewall.

Figure 7 Firewall & network protection
Select Visual Studio Code.

Figure 8 Selecting Visual Studio Code
Select the Private and Public network access rights for Visual Studio Code.

Figure 9 Allowing Visual Studio Code to access the network