I am on Mac OS and I think the drivers are OK. I have no problems interacting with my Photons and Electrons (unless they use a different way of communicating than the Core.
Anyway, I tried particle flash --usb tinker and I get this response in the terminal:
running dfu-util -l
Found DFU device 1d50:607f
checking file /usr/local/lib/node_modules/particle-cli/binaries/core_tinker.bin
spawning dfu-util -d 1d50:607f -a 0 -i 0 -s 0x08005000:leave -D /usr/local/lib/node_modules/particle-cli/binaries/core_tinker.bin
Copyright 2005-2009 Weston Schmidt, Harald Welte and OpenMoko Inc.
Copyright 2010-2016 Tormod Volden and Stefan Schmidt
This program is Free Software and has ABSOLUTELY NO WARRANTY
Please report bugs to http://sourceforge.net/p/dfu-util/tickets/
dfu-util: Invalid DFU suffix signature
dfu-util: A valid DFU suffix will be required in a future dfu-util release!!!
Deducing device DFU version from functional descriptor length
Opening DFU capable USB device…
Run-time device DFU version 011a
Claiming USB DFU Interface…
Setting Alternate Setting #0 …
Determining device status: state = dfuERROR, status = 10
dfuERROR, clearing status
Determining device status: state = dfuIDLE, status = 0
DFU mode device DFU version 011a
Device returned transfer size 1024
DfuSe interface name: "Internal Flash "
Downloading to address = 0x08005000, size = 79996
Download [=========================] 100% 79996 bytes
File downloaded successfully
Transitioning to dfuMANIFEST state
After that, I get exactly the same behaviour as described above by mute (15 Februare posts and thereafter). This means - the Core is back breathing white after the flashing.
- after pressing the reset button it is immediately breathing white again
- holding the Mode button does not bring it into listening mode.