Unable to flash Thread NCP on nRF52840dongle

[nagesh.shamnur]

Hi Support,

   I have nRF52840 Dongle (PCA10059) on which i am trying to flash thread ncp example as explained here (https://infocenter.nordicsemi.com/index.jsp?topic=%2Fstruct_sdk%2Fstruct%2Fsdk_thread_zigbee_latest.html -->

Option B: Flashing the Network Co-Processor to the nRF52480 Dongle)

I am trying to flash it using nRF Connect --> programmer application. I am getting the following error everytime. i have tried it multiple times and i am getting the same error. I have an altrernative nRF52840dongle but facing the same problem with alternative dongle as well. Kindly help.

Error:

[nagesh.shamnur]

i even tried flashing using nrf-utill but get the error. log as below:

$ nrfutil pkg generate --hw-version 52 --sd-req=0x00         --application build/zephyr/zephyr.hex         --application-version 1 ot-rcp.zip

$ nrfutil dfu usb-serial -pkg ot-rcp.zip -p /dev/ttyACM0

Traceback (most recent call last):
  File "/usr/local/bin/nrfutil", line 8, in <module>
    sys.exit(cli())
  File "/home/ohos-bld/.local/lib/python3.8/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/home/ohos-bld/.local/lib/python3.8/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/home/ohos-bld/.local/lib/python3.8/site-packages/click/core.py", line 1259, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/home/ohos-bld/.local/lib/python3.8/site-packages/click/core.py", line 1259, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/home/ohos-bld/.local/lib/python3.8/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/home/ohos-bld/.local/lib/python3.8/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/usr/local/lib/python3.8/dist-packages/nordicsemi/__main__.py", line 1014, in usb_serial
    do_serial(package, port, connect_delay, flow_control, packet_receipt_notification, baud_rate, serial_number, False,
  File "/usr/local/lib/python3.8/dist-packages/nordicsemi/__main__.py", line 970, in do_serial
    dfu.dfu_send_images()
  File "/usr/local/lib/python3.8/dist-packages/nordicsemi/dfu/dfu.py", line 127, in dfu_send_images
    self._dfu_send_image(self.manifest.application)
  File "/usr/local/lib/python3.8/dist-packages/nordicsemi/dfu/dfu.py", line 88, in _dfu_send_image
    self.dfu_transport.open()
  File "/usr/local/lib/python3.8/dist-packages/nordicsemi/dfu/dfu_transport_serial.py", line 216, in open
    self.__set_prn()
  File "/usr/local/lib/python3.8/dist-packages/nordicsemi/dfu/dfu_transport_serial.py", line 360, in __set_prn
    self.__get_response(DfuTransportSerial.OP_CODE['SetPRN'])
  File "/usr/local/lib/python3.8/dist-packages/nordicsemi/dfu/dfu_transport_serial.py", line 491, in __get_response
    raise NordicSemiException('Unexpected Executed OP_CODE.\n' \
pc_ble_driver_py.exceptions.NordicSemiException: Unexpected Executed OP_CODE.
Expected: 0x02 Received: 0x7E