Welcome to the WD community
Sorry to hear that you cannot access your files. The pins that you see are for jumper settings. Check the link bellow for more information. Unfortunately WD doesn’t offer any in house repair or data recovery services, but you have the option to contact any of our recommended data recovery companies for help. Also please share the model number for the My Book that you have.
Jumper settings
http://wdc.custhelp.com/app/answers/detail/search/1/a_id/1679#jumper
Data Recovery Partners
