FWIW, here is a similar problem:
http://forum.hddguru.com/bad-pcb-usb-device-t21892.html
Here is a comparison between your device and a functional Passport (may not be the same model):
English product name: "BAD PCB"
...
idVendor: 0x1058 = Western Digital Technologies, Inc.
idProduct: 0x0000
bcdDevice: 0x1008
iManufacturer: 0x01
English (United States) "WD"
iProduct: 0x02
English (United States) "BAD PCB"
iSerialNumber: 0x03
English (United States) "0671E8D00671E9F2"
English product name: "My Passport 0730"
...
idVendor: 0x1058 = Western Digital Technologies, Inc.
idProduct: 0x0730
bcdDevice: 0x1008
iManufacturer: 0x01
English (United States) "Western Digital"
iProduct: 0x02
English (United States) "My Passport 0730"
iSerialNumber: 0x03
English (United States) "575851314138304131393735"
AIUI, your Passport probably integrates the USB-SATA bridge IC on the HDD’s own PCB. I believe Essentials models incorporate AES hardware encryption, so that could be an additional problem. Even in the absence of encryption, you would still need to transfer unique “adaptive” information from the patient PCB to the donor PCB.
It would help a lot of we could see the “bad PCB”, but this would entail opening the enclosure. You might like to ask WD’s Tech Support for permission to do this, otherwise you would be voiding your warranty.
