Tried plugging into hub, and also 2 different USB connections on laptop directly no sound from Windows, just power - and board has power LED and about 2 Hz pulsating LED. tinyprog 1.0.11
$ apio system --lsserial
Number of Serial devices found: 0
$ tinyprog -m
$ tinyprog -l
TinyProg CLI ------------ Using device id 1d50:6130 No port was specified and no active bootloaders found. Activate bootloader by pressing the reset button
NOW, if I press AND HOLD the Reset button, Windows shows in Device Manager:
Unknown USB Device (Device Descriptor Request Failed)
and when I let go of the Reset button, that Device Manager line under “Universal Serial Bus contolllers” goes away. At no time does any other serial port appear under Ports (COM & LPT) in Device Manager.
When I hold the Reset button down, the outermost LED goes to about 1/4 intensity.
I have 2 boards, they both show identical symptoms.
Help! All of my USB ports are USB 3.0 ports; could that be a problem?