No DFU device found

Hi, I am using ubuuntu 16.04 with python2.7 and the Respeaker Mic Array v2.0. I have a ValueError when I try to update the firmware.

Here is the error:

john@ubuntu:~/catkin_ws/src/respeaker_ros/usb_4_mic_array$ sudo python dfu.py --download 6_channels_firmware.bin
Traceback (most recent call last):
  File "dfu.py", line 229, in <module>
    main()
  File "/home/john/.local/lib/python2.7/site-packages/click/core.py", line 722, in __call__
    return self.main(*args, **kwargs)
  File "/home/john/.local/lib/python2.7/site-packages/click/core.py", line 697, in main
    rv = self.invoke(ctx)
  File "/home/john/.local/lib/python2.7/site-packages/click/core.py", line 895, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/home/john/.local/lib/python2.7/site-packages/click/core.py", line 535, in invoke
    return callback(*args, **kwargs)
  File "dfu.py", line 218, in main
    dev = XMOS_DFU()
  File "dfu.py", line 198, in __init__
    super(XMOS_DFU, self).__init__()
  File "dfu.py", line 73, in __init__
    raise ValueError('No DFU device found')
ValueError: No DFU device found

Please help me

[johntyty912]

Turns out I just need to change the usb wire.

[Robopiyf]

Turns out I just need to change the usb wire.

Which port is the corrected one?