Win10 - Unknown USB device

NB-IoT
1

Hi,

I’m trying to connect my new SODAQ Sara N211 to my win10 notebook, however I always get unknown USB device. Device Manager says: Unknown USB device (device descriptor request failed).

How to solve this? I’m on a vanilla (fresh installed) win10 machine.
Or is my board broken (I ordered it May 2018!)

Thanks.
Guy

2

Hi @guyd

Did you install the boardfiles?
http://support.sodaq.com/sodaq-one/arduino-ide-setup/

Best regards,
Jan

3

Hi @Jan

Yes I installed the board files. Added the respective boards to the IDE.

Best regards,
Guy

4

Hi @guyd,

Can you double press the reset button while the usb is connected?
Does this give you a new COM port?

Best regards,
Jan

5

Hi @Jan,

Now the board is working again. What can be the reason why suddenly the serial port isn’t available anymore?

Thanks.

Kind regards,
Guy

6

Hi @guyd,

Can be some faulty code uploaded to the board.
Or when a sketch immidiatly goes into sleep/usb detach.

The double press feature puts the SAMD21 into bootloader mode to make sure you can upload new code.

Best regards,
Jan

7

Hi @Jan,

Ok thanks.

Kind regards,
Guy