is it making "foound device" noises when you plug into the PC? if so,what is the phone labled in device manager? try holding vol down/power while plugged in,and see if anything pops up in device manager(htc disc drive,android device,qhusb_download,maybe other options).
can you still get to hboot,via battery pull then vol down/power?
if not,try leaving it plugged into a wall charger(NOT the pc) for at lease 8 hours. pull the battery and try it on again. if that works,the phone had entered a deep sleep mode,wich i have not seen on the TB,but is an issue with the evo 3d.
The Delivery Guy
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