Tried simple program in arduino with latest board defs.1.5 and still can’t connect to upload firmware on cubcell v2 and cubcell plus. I can see on serial port the copyright notice. Have also tried in Vstudio. Even done the user button thing. still no response. Tried different usb leads . Anyone else having this issue?
I have loads of these out in use. Really need a clue here. it’s costing me days of trial and error.
