New Photon; fast blink cyan w/red bursts

Troubleshooting
1

I can't figure out what's wrong.

I have tried:

DFU mode, Particle keys doctor and I get this...

C:\Users\XXX>particle -v keys doctor XXXXXXX
New Key Created!
Saved!
dfu-util 0.8

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 dfu-util@lists.gnumonks.org

Opening DFU capable USB device...
ID 2b04:d006
Run-time device DFU version 011a
Claiming USB DFU Interface...
Setting Alternate Setting #1 ...
Determining device status: state = dfuIDLE, status = 0
dfuIDLE, continuing
DFU mode device DFU version 011a
Device returned transfer size 4096
DfuSe interface name: "DCT Flash "
Downloading to address = 0x00000022, size = 607
Download [=========================] 100% 607 bytes
Download done.
File downloaded successfully
Invalid DFU suffix signature
A valid DFU suffix will be required in a future dfu-util release!!!
Error during download get_status
Make sure your device is in DFU mode (blinking yellow), and that yo
A valid DFU suffix will be required in a future dfu-util release!!!
Error during download get_status

VError: Make sure your device is in DFU mode (blinking yellow), and
A valid DFU suffix will be required in a future dfu-util release!!!
Error during download get_status

at Promise.resolve.then.then.then.then.then.then.then.catch.err

[lots of errors]

2

You are running CLI 1.39.0, right?
Have you installed CLI via the Windows Installer or npm?
What does node --version and npm --version report?
Would be good to provide as much background as possible.

Also the [lots of errors] may actually provide a clue about the actual cause.