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External hard drive wrong power supply was plugged in

Mistake I plugged the power supply for my laptop into my external hard drive.
The Power supply should have been 12V DC but my laptop power supply was 20V.
The make of my external hard drive is West  Digital 640GB.
When now connected with the correct power supply the blue indicating light flashes but after a while stops.
The laptop does not acknowledge the external hard drive at all now. 
Please advise if there is any way of reseting this or something to get it working again or do I need to take it to be repaired if possible .  

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The power circuits in the external hard drive enclosure may have burnt out or the fuse may have blown. Its unlikely your hard-disk is itself damaged.
You may remove the actual hard-disk from the enclosure and put it in another and access the data.
All the best!

Posted on Jan 30, 2009

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