Hello,
I got a new MKRFOX1200 today.
After doing the first steps, programming some examples, it worked fine.
But suddenly the device is not recognized any more as USB COM port.
Win10 reports: Unknown device Id.
I just had the unkown device problem with a chinese atmega 2560. I had to install a new driver for the serial chip, but it only worked with the third cable.
So perhabs switch the cable or the USB port on the computer.
But probably you already did this.
Disconnect the MKRFOX.
Open IDE.
Select TOOLS.
Select BOARD and then BOARD MANAGER.
In the FILTER box type "mkr" It should list "Arduino SAMD Boards (32-bits ARM Cortex etc..."
Ensure it is installed and if not INSTALL it.
You may be presented with an install driver option to which you must say yes.
If you are on windows 9 / 10 you may have to override driver enforcement (google "driver enforcement")
Restart the IDE (optional but I always do it)
Plug in the MKR and hopefully you should see the board appear under the COM / LPT ports (hidden devices under win 10)
Also avoid USB 3.0 ports wherever possible and if you cannot do that insert a POWERED USB 2.0 hube between the USB 3.0 port and the Arduino.
Cables as mentioned above come in two types for the micro USB
Power only. But as you are getting a device of some sort seen it is doubtful if that is the cause.
I have edited the hardware ID in "C:\Users\xxx\AppData\Local\Arduino15\packages\arduino\hardware\samd\1.6.14\drivers\arduino-samd.inf" to match with the MKRFOX1200 board.
Same probleme here.. First time the drivers are installed, everithing worked fine, then I upload one sample sketch and the PC dosent recognize the board anymore.. The sketch was from the official Arduino site.
Any suggestion? The board is in deep sleap and dont do serial communication with PC? If so, how can I wake up the board?
Have you tried the "QUICKLY DOUBLE TAP" the reset button which should put it in BOOTLOADER mode on a new com port.
If that works then upload something simple like BLINK which will over ride your other sketch that you seem to have used to put it to sleep.
Also you need to add much more information about how you have things set up. THIS POST tells you the sorts of things that are useful to get you better answers.
Have you tried the "QUICKLY DOUBLE TAP" the reset button which should put it in BOOTLOADER mode on a new com port.
If that works then upload something simple like BLINK which will over ride your other sketch that you seem to have used to put it to sleep.
Also you need to add much more information about how you have things set up. THIS POST tells you the sorts of things that are useful to get you better answers.
I had he same problem with the MKRFOX1200. Suddenly the USD port is not recognized any longer.
I did the First Configuration on the Sigfox backend, and then the Event Trigger example, this all went well.
But then the board went dead as far as the USB port was concerned.
It took a while looking for a solution, but now I think it is because the board was put to deep sleep at the end of the last uploaded sketch.
Eventually I figured out that double tapping the reset button wakes the board up again and fixes the issue.