Pytrack shows up with alternative USB ID so dfu-util fails

[nicbkw]

Note that USB ID shows as 04D8:F013 and the firmware image update is for 04D8:F014

So, even if I supply the detected USB ID, dfu-util fails

dfu-util-static.exe -device 04D8:F013 -D pytrack_0.0.8.dfu
dfu-util 0.9

Match product ID from file: f014
No DFU capable USB device available

Windows 10 Pro, build 1709 on a Toshiba Portege laptop...

[jmarcelino]

If it's says F013 it's not in DFU mode. Make sure you are pressing the button on the Pytrak as you plug into USB. Then you only have 6 seconds while the board is in DFU mode.

[nicbkw]

@jmarcelino - thanks for the quick reply. Using Zadig, I have managed to see the Pytrack as an unknown device with USB ID 04D8:F014. However, when I follow the inistructions and press button, connect USB, wait 1 second, release button wait one second, run dfu-util, I see this:

dfu-util-0.9-win64>dfu-util-static.exe -D pytrack_0.0.8.dfu
dfu-util 0.9

Copyright 2005-2009 Weston Schmidt, Harald Welte and OpenMoko Inc.
Copyright 2010-2016 Tormod Volden and Stefan Schmidt
This program is Free Software and has ABSOLUTELY NO WARRANTY
Please report bugs to http://sourceforge.net/p/dfu-util/tickets/

Match vendor ID from file: 04d8
Match product ID from file: f014
Cannot open DFU device 04d8:f014
No DFU capable USB device available

If I wait until I hear the USB disconnect as the Pytrack leaves dfu mode then I see

dfu-util-0.9-win64>dfu-util-static.exe -D pytrack_0.0.8.dfu
dfu-util 0.9

Copyright 2005-2009 Weston Schmidt, Harald Welte and OpenMoko Inc.
Copyright 2010-2016 Tormod Volden and Stefan Schmidt
This program is Free Software and has ABSOLUTELY NO WARRANTY
Please report bugs to http://sourceforge.net/p/dfu-util/tickets/

Match vendor ID from file: 04d8
Match product ID from file: f014
No DFU capable USB device available

So, what might be causing dfu-util to report "...Cannot open DFU device 04d8:f014..."? - thanks!

[jmarcelino]

@nicbkw
You need to use Zadig to set the 04D8:F014 device as libusbK driver, if it's unknown it won't work. You need to follow the steps from https://docs.pycom.io/chapter/pytrackpysense/installation/firmware.htm

Alternatively an easier solution might be to install the Pytrack DFU Windows driver I made a while ago for the PyTrack: http://metavurt.net/software/drivers/PyTrack_DFU.zip

Most people have had success with this.

Once the driver issue is solved dfu-util should work.

[nicbkw]

I could not get this to work on Windows whatever I tried. Switched to Mac and dfu-util worked first time...

Thanks - for anyone else reading this trail, forget Windows, try Mac :-)