I've just received nRF52840, it powers up and blinks as programmed and the buttons work. I hear the "ba bing" on my PC when it connects and disconnects, but the JTAG does not show up in my Device Manger Com ports, nor does it appear in connections in nRF connect visual code. It also does not connect to my phone running nRF Toolbox. I'm pretty much dead in the water. Please advise, I have read a number of similar questions in the forum but nothing seems to match and other answers only lead to dead web pages.
