Problem in WD 3TB My Book External Hard

a  week ageo i buy  WD 3TB My Book External Hard .and now when i contacted it to my computer it work well. but when i pick up it on my hands and shake i feel in bottom of hard have some problem.i fell i have magnet in my hand and feel magnetic field.and then when i put my cellphone near my hard i see little magnetic field in my phoneit was a problem or not? anybody know?

I don’t not recommend putting your hard drive close to a magnet. Since this may delete all your files and damage the hard drive. If you want to test your My Book drive, you can try running a DLG test. 

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