Hi all,
I bought a new NanoVNA-H on ebay and received it today. It seems to work, but when I connect it to a laptop using the supplied USB-A to USB-C cable, I get a warning "USB device not recognised. The last USB device you connected to this computer malfunctioned and Windows does not recognise it". I've tried connecting many times, different ports, rebooting, and a different laptop, but always get that message and the device shows up as "not working" in device manager.
I had a quick look at the board, the connections to the socket and soldering of the processor look OK, no shorts that I can see.
Has this been seen before, is there a solution or do I need to buy another one?
Thanks for any advice.
