I have connected the device via USB, downloaded the latest version of Arduino IDE (1.8.5) installed (automatically offered) the drivers for the mkr, and there's nothing in the serial port selector besides the bluetooth. I've also installed the FTDI drivers but the same scenario.

What else can I try?

Error message:

Arduino: 1.8.5 (Mac OS X), Board: "Arduino/Genuino MKR1000"

Sketch uses 9624 bytes (3%) of program storage space. Maximum is 262144 bytes.
Couldn't find a Board on the selected port. Check that you have the correct port selected.  If it is correct, try pressing the board's reset button after initiating the upload.

Seems like it is trying the bloutooth port

PORTS {/dev/cu.Bluetooth-Incoming-Port, /dev/tty.Bluetooth-Incoming-Port, } / {/dev/cu.Bluetooth-Incoming-Port, /dev/tty.Bluetooth-Incoming-Port, } => {}

UPDATE this is a system report screenshot:

enter image description here

Also the FTDI kext is loaded

sudo kextload /Library/Extensions/FTDIUSBSerialDriver.kext
kextstat | grep FTDI                                      
  194    0 0xffffff7f85e62000 0x7000     0x7000     com.FTDI.driver.FTDIUSBSerialDriver (2.4.2) E16D9540-AF63-36AD-94C4-B1164FBD6078 <109 55 5 4 3 1>
  • Does plugging and unplugging the USB device cause any messages in the kernel debug messages to appear (dmesg -w, see discussions.apple.com/thread/4170078)? Feb 15 '18 at 19:12
  • 007942.764202 Bluetooth USB Host Controller@14300000: IOUSBHostDevice::forcePowerGated: allowing power level to float 007942.764217 Bluetooth USB Host Controller@14300000: IOUSBHostDevice::forcePowerGated: kPowerStateSuspended completed with 0x00000000 after 0ms Feb 15 '18 at 19:17
  • the device is correctly listed in USB devices in settings Feb 15 '18 at 19:17
  • 1
    Which device is correctly listed? Can you edit your main question include logs and or a screenshot? Above messages indicate that you're seeing something about your Bluetooth controller? Or are those really the messages you get at the exact moment you plug/unplug the Arduino? (I'm trying to figure out here if the USB device is recognized at all, maybe your board is dead.) Feb 15 '18 at 19:22
  • 1
    well ls /dev/ is a very long result, a lot of ttyuX devices, I've already tried with FTDI drivers also Feb 16 '18 at 14:52

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