Errors while opening serial port

Troubleshooting
1

Turned off brewpi spark for a few hours and now can’t do anything. Update script gives:

Checking current firmware version…
Apr 23 2016 18:51:36 Opening serial port
Apr 23 2016 18:51:47 Errors while opening serial port:
Could not find compatible serial devices

Unable to receive version from controller.
Is your controller unresponsive and do you wish to try restoring your firmware? [y/N]:
y
Traceback (most recent call last):
File “/home/brewpi/utils/updateFirmware.py”, line 263, in
result = updateFromGitHub(userInput=userInput, beta=beta, useDfu=useDfu)
File “/home/brewpi/utils/updateFirmware.py”, line 76, in updateFromGitHub
if “Particle” in name:
TypeError: argument of type ‘NoneType’ is not iterable

Web interface gives:
Apr 23 2016 18:53:07 Opening serial port
Apr 23 2016 18:53:17 Errors while opening serial port:
Could not find compatible serial devices

Please help asap .

2

What do you see on the screen of the BrewPi Spark?

It seems like it does not have a good USB connection.

If you think the firmware got wiped or something, run flashDfu:

sudo python /home/brewpi/utils/flashDfu.py --autodfu

3

Brewpi is is still in previous mode and is receiving power, and previously data, over the USB. No cables were moves when turned off as it is mounted.

4

Unplugging and plugging USB resolved. So bizarre as it was mounted with cabling not moving. Thanks for the help☺

5

Very strange. It is possible to for the USB power pins to connect with the data pins making contact. Maybe when replugging it, you pushed it in just a bit further.