Last night I updated to 19.rev5. The update failed, and I lost connection to my duet-wifi. I went through all the troubleshooting steps - nothing.
I pressed the erase button, it flashed dark and then the lights came back (see below), and held for a slow count of 5, then pressed the reset button, nothing seemed to happen, so I unplugged and replugged back into my laptop. This is all done with mains power off and only a USB connection to a computer. From this point on,
I have no port, no device at all. I've tried 2 USB cables, different USB ports, nothing. I tried 3 different operating systems on two different laptops (one is dualboot), even installing the new device drivers (.inf) files in Windows10. Not one can see any device - no com port, no USB-serial on mac, no Duet-device on windows, no USB from dmesg in linux.
On my duet-wifi, when plugged into a USB port on any computer, the lights above and below the usb connector are solid red, there is a solid green light and below that another solid red light.
When I press the reset button, nothing happens (no momentary blink or lights flash).
and now if I try the erase button, nothing happens.
I was hoping to use the bossac option to reinstall the firmware, but neither bossac, arduino and the sam-ba can see the device.
Any ideas what happened, and how to fix?