M5Stack Core2 will not enter download mode
-
I am trying to burn new software into my new Core2 using M5burner. I have tried using an apple Mac and PC Window 10). With both I can open the serial monitor and reboot the Core from the PC/Mac. I have tried several USB cables including one I use for a USB hard disk.
No matter what I do I get the same error reported that the Core is not in USB mode so the flash fails.
I have tried holding the reset button while plugging in and the documentation offers no other clues.
I have double checked I have the right usb driver and rebooted everything.
It may be a faulty core2 but would appreciate any pointers before I return it.