Nano Driver - Windows 7 Instructions PDF Print E-mail
Written by Daniel Patellis   
Tuesday, 17 September 2013 13:19


In certain situations, Windows 7 will recognize and install the incorrect FTDI (USB) software drivers for the Nano V3 devices.   Characteristics of this behavior are as follows:
  • When uploading a sketch, you receive the error “avrdude: stk500_getsync(): not in sync: resp=0x00”.
  • Unable to receive serial data through USB by use of the “Serial Monitor” under Tools in the Arduino compiler.
  • While attempting an upload you will notice the RX light flash and but not the TX light on the device.

Files Needed:


The instructions below outline how to remove the incorrect drivers, install the correct drivers, and configure Windows driver update behavior when finding new devices.   The basic steps are:
  1. Configure Windows 7 to not automatically search Windows Update for the latest drivers
  2. Uninstall any FTDI drivers currently installed pertaining to the Arduino NANO style devices
  3. Install the correct FTDI drivers for Nano V3 devices

Step #1: Configure Windows 7 to not automatically search Windows Update for the latest drivers

  1. Click Start, right-click Computer, and then click Properties
  2. In the Tasks list, click Advanced System Settings
  3. On the System Properties dialog box, click the Hardware tab [1], and then click Device Installation Settings button [2]



























  1. On the Device Installation Settings dialog box, select “No, Let me choose what to do” [3]
  2. Check “Install driver software from Windows Update if it is not found on my computer.” [4]
  3. Click Save Changes in the Device Installation Settings dialog box
  4. Click OK in the System Properties dialog box

Step #2: Uninstall any FTDI drivers

  1. Download the “” from the link provided above
  2. Unzip to a location on your hard drive
  3. Navigate to that location and run “CDMuninstallerGUI.exe” program
  4. Click the Add[1] button to add vendor ID and Product ID to the list.  DO NOT CHANGE the default values
  5. Click Remove Devices[2] to proceed with the removal of the drivers
  6. A dialog box will display with the message “Device removed from system.” Click OK
  7. Close CDM Uninstaller program
Note: If you should get the following error message while closing the CDM Uninstaller program, just click “This program installed correctly.”

Step #3: Install the correct FTDI drivers

  1. Navigate to that location that you unzipped the file to from Step #2.and run “DriverHelper.exe” program
  2. From the Install Board Drivers dialog box click Install

  1. A dialog box notifying you that you may receive errors when installing will appear.  Click Yes

  1. If all goes well you should receive a Installation complete dialog box.  Click OK

  1. Click Close on the Install Board Drivers dialog box
The CircuitAddict would like to thank the contributor of the above program.  If we find the contributor, we will credit him or her for their work!



Last Updated on Tuesday, 22 October 2013 21:57

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