How to OTA DFU my DUT via nrf52840 dongle by PC

[waydychou]

I am trying to update the DUT(Device Under Test) via nrf52840 Dongle with PC(ubuntu16.04/windows10) by the command as below:

nrfutil dfu ble -ic NRF52 -pkg OTA_DFU.zip -p /dev/ttyACM0 -a C27ACE6B0EE9

And error occurs as below:

Traceback (most recent call last):
  File "/home/waydy_chou/.local/bin/nrfutil", line 8, in <module>
    sys.exit(cli())
  File "/usr/local/lib/python2.7/dist-packages/click/core.py", line 764, in __call__
    return self.main(*args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/click/core.py", line 717, in main
    rv = self.invoke(ctx)
  File "/usr/local/lib/python2.7/dist-packages/click/core.py", line 1137, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/usr/local/lib/python2.7/dist-packages/click/core.py", line 1137, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/usr/local/lib/python2.7/dist-packages/click/core.py", line 956, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/usr/local/lib/python2.7/dist-packages/click/core.py", line 555, in invoke
    return callback(*args, **kwargs)
  File "/home/waydy_chou/.local/lib/python2.7/site-packages/nordicsemi/__main__.py", line 1163, in ble
    dfu.dfu_send_images()
  File "/home/waydy_chou/.local/lib/python2.7/site-packages/nordicsemi/dfu/dfu.py", line 127, in dfu_send_images
    self._dfu_send_image(self.manifest.bootloader)
  File "/home/waydy_chou/.local/lib/python2.7/site-packages/nordicsemi/dfu/dfu.py", line 92, in _dfu_send_image
    self.dfu_transport.open()
  File "/home/waydy_chou/.local/lib/python2.7/site-packages/nordicsemi/dfu/dfu_transport_ble.py", line 459, in open
    self.dfu_adapter.open()
  File "/home/waydy_chou/.local/lib/python2.7/site-packages/nordicsemi/dfu/dfu_transport_ble.py", line 117, in open
    self.adapter.driver.ble_enable(ble_enable_params)
  File "/home/waydy_chou/.local/lib/python2.7/site-packages/pc_ble_driver_py/ble_driver.py", line 127, in wrapper
    raise NordicSemiException('Failed to {}. Error code: {}'.format(wrapped.__name__, err_code))
pc_ble_driver_py.exceptions.NordicSemiException: Failed to ble_enable. Error code: 3

But, when I used pca100056 DK board(instead nrf52840 Dongle), it worked well.

Do you have any idea, what happended? 

env:

ubuntu:16.04

nrfutil: 5.2.5

pc-ble-driver-py:0.11.4

[waydychou]

Hi Hung Bui,

Thank you for quick reply.

Actually, I don't know which version I used in nRF52840 dongle.

l just know it downloaded by nRFConnect windows 10  desktop version.

How can I make it work right now?

Do you have steps for this?

[Hung Bui]

I can't help if you don't know what you flashed on the nRF52840. 

Please try to use nRF Connect - Bluetooth Low Energy application on PC, open the dongle , the app will ask you to flash the firmware on the dongle. After that the dongle can be used to OTA DFU update other devices. 

[waydychou]

Yes, I did.

nRF52840 dongle flashed the firmware by the app you mentioned. Then I used it to OTA DFU and saw the error message mentioned before. The procedure, the command all follow the instroction of document. So Idon't know what happented.

If I missing anything?

[waydychou]

Hightlight one point that I am not saying using Bluetooth low energy to OTA DFU but nrfutil python  command. Like you said, Bluetooth Low Energy work well and can do OTA DFU well. Iam trying to do that with the command as I mentioned before.