Can't connect to SAMD boards

[timonsku]

I can't seem to get SAMD working with the examples. I'm running Windows 10 with Chrome Cannary.
When I upload the serial example I get an unkown USB device in the device Manager, this does not change when setting the USB version to 2.1. I can still upload to it via the serial port though.

I also modified the serial.js to include the PID and VID of my board (Adafruit Metro M0 Express), makes no difference. Chrome does not list the device when I click connect.
The core the Adafruit boards use is identical to the SAMD boards the official Arduino boards use, so this should technically make no difference if the Arduino boards are supported.

[sohil4932]

I am also facing same issue with my SAMD board. Can someone help me to connect it?