"NO_EMULATOR_CONNECTED" Error after installing pynrfjprog and trying to flash firmware onto nrf9160

[Chris]

After getting the latest nRF9160 in (DK V0.7.0) I installed pynrfjprog, and then issued the following command (as provided in the README)

nrf9160_mdm_dfu --update

I then got this error.

Traceback (most recent call last):
File "c:\users\cl\appdata\local\programs\python\python37\lib\runpy.py", line 193, in _run_module_as_main
"__main__", mod_spec)
File "c:\users\cl\appdata\local\programs\python\python37\lib\runpy.py", line 85, in _run_code
exec(code, run_globals)
File "C:\Users\cl\AppData\Local\Programs\Python\Python37\Scripts\nrf9160_mdm_dfu.exe\__main__.py", line 9, in <module>
File "c:\users\cl\appdata\local\programs\python\python37\lib\site-packages\nrf9160_mdm_dfu\bin\nrf9160_mdm_dfu.py", line 50, in main
if nrf_dfu.init(args.snr, args.ipcpath) < 0:
File "c:\users\cl\appdata\local\programs\python\python37\lib\site-packages\nrf9160_mdm_dfu\api\nrf_dfu_API.py", line 44, in init
self.api.connect_to_emu_without_snr()
File "c:\users\cl\appdata\local\programs\python\python37\lib\site-packages\pynrfjprog\API.py", line 541, in connect_to_emu_without_snr
raise APIError(result)
pynrfjprog.API.APIError: An error was reported by NRFJPROG DLL: -13 NO_EMULATOR_CONNECTED.

[haakonsh]

NO_EMULATOR_CONNECTED means that the J-link driver does not find any J-Link debugger on any of the PCs COM ports. I suggest you verify that the DK is properly connected and turned on. 

FYI, your USB cable might be broken, or is of a "power only" type USB cable. 

[Chris]

Thanks!

When I use the same cable on the previous version of the dev kit, it works just fine (and I see COM3 populating as "JLink CDC UART Port"

However, when I plug the cable into the new dev there are new ports detected (COMs 5, 6, and 7) but nothing is recognized as a J-link debugger.

Any thoughts?

[haakonsh]

Hmm, Either the J-link drivers does not recognize this device, or the J-link FW needs to be updated. 

Try uninstalling the USB drivers for the DK that's not recognized, remove the device from the SUB port and re-insert it. The J-link USB driver should then install correctly.