HIfiberry Dac2 HD stopped working

recently my Dac Hd stopped working. Ive tried it on another Rasp Pi and not recognized as well. I was running diet pi and choosing the dac Hd in config screen changes it to the HD however it isnt actually there. Ive tried many many installations. Ive checked the GPIO header connection thinking possibly it was that to no avail. Tried different OS like volumio etc and on shareport for the device will show up. Its as if its not attached. How do I tell if its indeed dead? I do get 5v on the J1 connection to power additional boards. NO obvious signs of it being fried.


ANy way to test this board properly to see if its dead?


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