nrfutil 4.0.0 dfu thread

[Mary]

I have migrated a project that uses Thread DFU from SDK for Thread and Zigbee 1.0.0 to 2.0.0.

I have successfully loaded the new MBR, bootloader, settings and program via nrfjprog and Segger.

I downloaded the standalone nrfutil 4.0.0 (running on Windows 7) from here

Initially I got a dialog from Windows saying it couldn't find VCRUN140.dll, even though that dll is on my pc at C:\Windows\System32

I copied the dll to the same directory where I installed nrfutil.exe

Now, when I run it I get this error:

nrfutil dfu thread -f -pkg my_dfu_package.zip -p COM11 --channel 15 --panid 4660
Traceback (most recent call last):
  File "nordicsemi\__main__.py", line 1133, in <module>
  File "site-packages\click\core.py", line 722, in __call__
  File "site-packages\click\core.py", line 697, in main
  File "site-packages\click\core.py", line 1066, in invoke
  File "site-packages\click\core.py", line 1066, in invoke
  File "site-packages\click\core.py", line 895, in invoke
  File "site-packages\click\core.py", line 535, in invoke
  File "nordicsemi\__main__.py", line 1014, in thread
  File "nordicsemi\__main__.py", line 65, in ble_driver_init
  File "c:\python27\Lib\site-packages\PyInstaller\loader\pyimod03_importers.py", line 389, in load_m
odule
  File "site-packages\pc_ble_driver_py\ble_driver.py", line 106, in <module>
RuntimeError: Could not load shared library C:\Users\Frantec\AppData\Local\Temp\_MEI10~1\lib\win\x86
_32\pc_ble_driver_shared_sd_api_v3.dll : '[Error 193] %1 is not a valid Win32 application'.
Failed to execute script __main__

What else do I need?

Mary

[Martin Lesund]

Hi Mary,

Please make sure that you follow the exact steps in the installation guide.

---

From the documentation:

If you are running nrfutil on Windows, the runtime libraries targeted during the library build must be present when running code using the library. The following errors indicate that the runtime libraries are not available:

• Missing MSVC*120.DLL or MSVC*140.DLL
• RuntimeError: Could not load shared library <path>/pc_ble_driver_shared.dll : '[Error 193] %1 is not a valid Win32 application

In this case, install the redistributable installer for Visual Studio 2013 or Visual Studio 2015, respectively. Select the version that corresponds to the architecture of your Python installation (x86 or x64).

---

Best Regards,

Martin L.

[Mary]

Yes, this had already been done when I installed nrfutil 3.5.1.

I had installed it using vc_redist.x64.exe

I also tried installing using

pip install nrfutil

But it said that everything was already installed (because it found nrfutil 3.5.1)

Mary

[Martin Lesund]

Hi Mary, 

Sorry for the delay, I have been traveling.

Could you please uninstall the older nrfutil 3.5.1 or any other versions you may have and run 'pip install nrfutil' from command prompt?

I confirmed that it installed the 4.0.0 version on my side when doing this.

Best regards,
Martin L.