Argon can no longer be set to DFU mode. I hold the mode then press reset. It will flash magenta and I continue to Hold mode till it flashes yellow. I then release the mode button. It will flash yellow for ~4 seconds then rapid flash white. From there it will blink blue. When I press reset the USB will go offline and not be recognized until it starts to blink blue. Normally in DFU mode when yellow it will be recognized as a USB device. Without DFU mode none of the particle cli commands work.
I have a particle debugger but that also requires DFU mode. Also the debugger commands error out no able to find scripts…
C:\Users\jbirn\.particle\toolchains\openocd\0.11.2-adhoc6ea4372.0\bin>openocd.exe -f share/openocd/scripts/interface/cmsis-dap.cfg -f share/openocd/scripts/target/nrf52-particle.cfg -c "adapter_khz 1000" -c "transport select swd" -c "init" -c "soft_reset_halt" -c "nrf5 mass_erase" -c "flash write_image /Users/jbirn/Downloads/argon.hex" -c "reset" -c "exit"
Open On-Chip Debugger 0.10.0+dev-00920-g6ea43726 (2019-07-02-23:12)
Licensed under GNU GPL v2
For bug reports, read
http://openocd.org/doc/doxygen/bugs.html
embedded:startup.tcl:26: Error: Can't find share/openocd/scripts/interface/cmsis-dap.cfg
in procedure 'script'
at file "embedded:startup.tcl", line 26
In the particle app when I try to setup a new argon it will see the device and my WiFi network. After entering the wifi PW it will breath white for a bit then blink blue again. It will error out stating not able to obtain an IP address.
Is it dead? These things seem fragile compared to ESP32’s.
Hi Jason-
Can you run the device doctor and share the logs (or the error message if it doesn’t get that far)?
This is as far as it gets on the web version of the device doctor. It hangs at the message below and the device blinks blue. Never goes into DFU mode.
Waiting for the device to finish updating itself and restart…
This will take several seconds, and the status LED may blink yellow, white, magenta (red and blue at the same time), blue, or green.
Device information
Is the device claimed to my account? 
No
Is the device in a product I have access to?
No
Device information retrieved from the cloud:
This is the error I get in the CLI command. I press continue when the Argon flashes yellow but the USB is not active.
PS C:\Users\jbirn> particle doctor
The Device Doctor will put your device back into a healthy state
It will:
- Upgrade system firmware
- Flash the default Tinker app
- Reset the device and server keys
- Clear the Wi-Fi settings
The Doctor will operate on your Argon connected over USB
PLEASE DISCONNECT ALL OTHER DEVICES BEFORE PROCEEDING
You'll be asked to put your device in DFU mode several times to reset different settings.
Updating system firmware
Put the device in DFU mode
Tap RESET/RST while holding MODE/SETUP until the device blinks yellow.
? Select Continue when ready Continue
! An error occured while opening the device:
Error: No devices found
> Please check that the device is connected to the computer via USB.
> If the device is connected, switching it into DFU mode may help.
> You can also visit our community forums for help with this error:
https://community.particle.io/
PS C:\Users\jbirn>