Bricked MRCC after latest firmware update.

[chad.painter@gmail.com]

I followed the instructions here on the site. using the links therein
I tried the update with my Macbook, which only has three USBC ports. I did the initial using a hub. Then I removed the hub. still nothing
when I pressed the firmware button everything went black. 
I made sure and used the correct MRCC firmware available on the update page. 
I have tried many different cables usbc usb b to usbc
I have tried my PC with all of the same cables including long and short.

when I power on the MRCC the PC LED flashes briefly 
Factory reset does nothing 

I have tried earlier versions of firmware. No Joy
Thoughts?