14c312ab__Base___Diagnostic_Error_Codes__Status
[Error code] 136 [Explanation] Bad Sector [Definition] Sector Marked Bad Error. There may be repairable media errors on a platter. The automatic repair feature can attempt a repair if possible. You may need to rescan to ensure that the repairs were effective. Replace the drive if the repair fails. [Status] 
Re-test Drive
WD Support / Knowledge Base / Diagnostic Error Codes
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