Using nRF52840 with nRFUtil command line to dfu firmware to a nrf52832

[BTtester]

I currently use nrfConnect on android to download firmware to nrf52832s.  I am just getting started with nRFUtil and the dongle.  

If I understand correctly, I should be able to use nrfutil on the  command line to download the same firmware using  nRF52840.

nrfutil.exe -pkg Mypackage.zip -ic NRF52  -a D27F2A70D5BE -f

Questions:

1) How do I get over the unknown usb device error when I plug in the dongle.  

2) Do I use the -p command with the dongle?

Thank you.

[BTtester]

Thank you.  Please close.  I got the doggle to work .  I believe it was installing the Programmer in nRFConnect Desktop did  it.