1.1. Verify that the Windows driver is installed correctly:
1.1.1. Wait a few minutes for the driver to be installed by Windows.
1.1.2. Go to Start, Control Panel, Device Manager.
1.1.3. If the drivers have correctly installed, you should see the one ports listed as “mbed Serial Port” and “USB Serial Device”. Note the COM port number for the “USB Serial Device”
1.1.4. If you see the following, then you will need to install the correct Windows driver:
1.1.5. Download the Arm Mbed Windows serial port driver from here: https://os.mbed.com/docs/v5.7/tutorials/windows-serial-driver.html
1.1.6. For Window10:
1.1.6.1 Run the mbedWinSerial_16466.exe by double-clicking it.
1.1.7. For Windows7:
1.1.7.1. mbedWinSerial_16466_Maxim.zip file, extract to a folder.
1.1.7.2. The mbedSerial_x64.inf has been modified per the blue lines below. Similar changes were made to the mbedSerial.inf
[_Devices.ntamd64]
%S_DeviceDesc1%=Install,USB\VID_0D28&PID_0203&MI_01
%S_DeviceDesc1%=Install,USB\VID_0D28&PID_0204&MI_01
%S_DeviceDesc1%=Install,USB\VID_1F00&PID_2012&MI_01
%S_DeviceDesc1%=Install,USB\VID_1F00&PID_2012&REV0100
%S_DeviceDesc1%=Install,USB\VID_1F00&PID_2012
1.1.7.3. Right click on the "? CDC device", Update Driver Software, Browse My Computer for driver software, and enter the folder name from above. Wait at least 3 to 5 minutes for the driver to install.