I have an autonomo rev. 5 that i can no longer upload programs to. I get the following error (after a long period of time):
No device found on ttyACM0
An error occurred while uploading the sketch
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.
Board at /dev/ttyACM0 is not available.
However when i connect the USB cable and then check the connection it indicates that there is a device on ttyACM0 (Arduino/Genuino Zero (native USB port...)
I have tried the above option with the rest button but this has no effect.
i have another autonomo that works fine so i assume that something has got stuck, so is there a method to "unstick it".
Also LED 2 is blinking very fast continuously as soon as i connect the USB.
i am running a linux machine and the command dmesg | tail gives the following information:
[171049.869795] cdc_acm 1-10:1.0: failed to set dtr/rts
[171099.587335] usb 1-10: new full-speed USB device number 51 using xhci_hcd
[171099.722827] usb 1-10: New USB device found, idVendor=2341, idProduct=804d
[171099.722834] usb 1-10: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[171099.722839] usb 1-10: Product: SODAQ Autonomo
[171099.722842] usb 1-10: Manufacturer: Arduino LLC
[171099.723950] cdc_acm 1-10:1.0: ttyACM0: USB ACM device
Any help is much appreciated.