I've been researching this encryption and i've found the solution for anyone searching as much as i did and i hope this helps someone search to recover lost data.....granted you didn't reformat your drive beforehand.
All you need to do, is to replace the PCB sata control board (inside your enclosure,attached to the HDD,that has the power and sata cable ports), and swap the PCB-sata control board from the old board to the new one. Then! you can access the files !!! , as long as the encryption codes on the disk and new chip match.
The chips have model codes for each Rev version.(Rev's tell you which type of encryption you have) For instance, mine is "4061-705094-001 Rev. AH"
When matching the codes up, ensure that your FIRST 2 ROWS of digits & REV are the same. The last 3 digits don't have to match.
As far as the new chips goes, you can buy a chip from a supplier in Hong Kong for anywhere from 30-on up. You can find them around ebay but not as quickly as this page offers. Especially if you need to recover your data ASAP.
http://parts.com.hk/1/index.php?main_page=index&cPath=1_2_3&sort=20a&page=7
Hope this helps guys, Lastly , i'm not responsible if this doesn't work for you.