[ubuntu] Ubuntu Rescue Remix

I take it that if a drive is not detected with the sudo testdisk command that it is not recoverable using Ubuntu Rescue Remix, or am I wrong? I have a Barracuda drive that spins and makes the normal nice soft clicking sound when powering up, but is not detected in Windows or Ubuntu, not with the Ubuntu Rescue Remix disc ruing sudo testdisk command. I’ve mounted the drive into a desktop, and it wouldn’t boot. I’ve also tried it in a docking station, and two other usb to sata adapters, one is usb2 and the other is usb3. I also tried swapping circuit boards with another identical drive, but it was still not detected. When I swapped the circuit boards back, I had to reformat the good drive, and it still works fine, but in no case do I get detection of the bad drive. Is there anything else I can try?