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EV2400: No power and no communication with computer. DOA

Part Number: EV2400

I just purchased an EV2400 that doesn't work DOA.  I was told by customer service that I need to post here before this item can be returned. The device does not work.  No communication with working computer usb port and usb cable.  No indication of any status light on device.  Tried multiple usb cables, working computer along with downloaded software.  An urgent response from an engineer is appreciated so that this return can be processed.  Thank you.