I have the same problems in Windows 7, see my previous post. The serial port works fine under linux.
Are you using Windows 10?
Also I have to say that the USB-COM Intel driver for Curie works very poorly in my Windows 7.
While the serial console works fine in the Arduino...
On my UDOO Ultra I have installed at the moment both Ubuntu 17.0.4 and Windows 7 from DVD (not USB stick).
The installation of Ubuntu went...
I ordered an Ultra on Jan 13, order number 300004252.
For me it doesn't matter if the power supply is US or EU type, as long as my board arrives soon.
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