I am following instructions to build CO2 monitor and I got stuck on switching core module to the DFU mode for firmware update. Seems, it does not work on core module, or it is not recognized.
"$ bcf flash --dfu bigclownlabs/bcf-kit-wireless-co2-monitor:latest
Copyright 2005-2009 Weston Schmidt, Harald Welte and OpenMoko Inc.
Copyright 2010-2014 Tormod Volden and Stefan Schmidt
This program is Free Software and has ABSOLUTELY NO WARRANTY
Please report bugs to firstname.lastname@example.org
dfu-util: Invalid DFU suffix signature
dfu-util: A valid DFU suffix will be required in a future dfu-util release!!!
dfu-util: Cannot open DFU device 0483:df11
dfu-util: No DFU capable USB device available
The device is probably not in DFU mode
1. Make sure the USB cable is connected to your desktop (host).
2. Press the BOOT button on Core Module and keep it pressed.
BOOT button is on the right side and is marked with letter “B”.
3. Press the RESET button on Core Module while BOOT button is still held.
RESET button is on the left side and is marked with letter “R”.
4. Release the RESET button.
5. Release the BOOT button.
As well, I cannot find core module connected to PC (via USB).
I am using Ubuntu 16.04LTS.
Probably, I am just doing something wrong…
Thanks for help.