I tried another thing: particle flash --usb CC3000 and I get this response:
running dfu-util -l
Found DFU device 1d50:607f
checking file /usr/local/lib/node_modules/particle-cli/binaries/cc3000-patch-programmer.bin
spawning dfu-util -d 1d50:607f -a 0 -i 0 -s 0x08005000:leave -D /usr/local/lib/node_modules/particle-cli/binaries/cc3000-patch-programmer.bin
dfu-util 0.9
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 deviceā¦
ID 1d50:607f
Run-time device DFU version 011a
Claiming USB DFU Interfaceā¦
Setting Alternate Setting #0 ā¦
Determining device status: state = dfuERROR, status = 10
dfuERROR, clearing status
Determining device status: state = dfuIDLE, status = 0
dfuIDLE, continuing
DFU mode device DFU version 011a
Device returned transfer size 1024
DfuSe interface name: "Internal Flash "
Downloading to address = 0x08005000, size = 25068
Download [=========================] 100% 25068 bytes
Download done.
File downloaded successfully
Transitioning to dfuMANIFEST state
Flash success!
After that, the is blinking magenta indicating it is in āOTA FIRMWARE UPDATEā (https://docs.particle.io/guide/getting-started/modes/core/#ota-firmware-update). It was in that mode for about ten minutes and nothing changed. After pressing reset, it immediately goes back to the same magenta blinking pattern and holding the mode button does not bring it into listening mode.