[MinnowBoard] New minnow board max and no video and no console - broken ?

[nb]

Hi everybody,

I’m posting here hoping to find some help

I’ve received today my minnowboad max. While waiting for it I have prepared everything to use it the first day.
I’ve bought a micro usb to vga adapter but nothing on the screen when booting.
Tried this with and without the micro sdcard, it’s the same.

I’ve also bought a small ftid to usb board to boot on serial console if display don’t work. 
I’ve tried this with a linux box using serial. I use kermit on a Mac, and all was ok.
I tried it on the serial connector, but nothing happens. I’ve tried different speeds 19200 bps, 115200, 56700 but no success.
I see leds blinking (on ftdi board) at boot time, and when typing on the Mac keyboard but no text is displayed.

Isn’t the minnowboard broken?
I really don’t understand.

It would be great if someone here has an idea or a way to search

Regards