No idea as well, but there was no need to do that, as all your need is an app/tools which will allow you to see Linux partitions.
Worst case scenario look here:
If this guide isn’t working for you, try v2.0 at
http://community.wdc.com/t5/My-Book-Live/GUIDE-Debrick-MyBookLive-v2-0/td-p/567582
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DISCLAIMER
Be aware that this will void your warranty and is only to be used as a last resort when you have no dashboard or SSH
I am not responsible for any loss of data as a result of you following this guide
PROCEED AT YOUR OWN RISK
UPDATE: Disassembly video…