Mid 2010 Model A1278 / 2.4 or 2.66 GHz Core 2 Duo processor

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won't starts, gives? sign

My hard disk was replaced 1 year ago, a couple months later this problem appeared, I was able to fix it but now I have the same problem. Each time I move my laptop, the problem appears. Could it be a bad connection of the hard disk or cable ?

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Hard Drive cable faulty or not plugged in properly. It's more likely the hard drive cable.

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You're hitting a known issue in this series with the HD SATA cable. There are a few places where the cable can rub causing it to short out. You'll need to replace it. Here is the IFIXIT guide you'll need to follow: MacBook Pro 13" Unibody Mid 2010 Hard Drive Cable Replacement and here is the best cable to put in: MacBook Pro 13" Unibody (Mid 2012) Hard Drive Cable. You'll need to do a bit of alteration to the system frame to make room for the bigger cable.

MacBook Pro 13" Unibody (Mid 2012) Hard Drive Cable Image

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I see you recommand to order the cable: MacBook Pro 13" Unibody (Mid 2012) Hard Drive Cable. But the macbook is from mid 2010.

Don't I need to order this one: MacBook Pro 13" Unibody (Mid 2009/Mid 2010) Hard Drive Cable / With Bracket / New IF163-013-1

Thanks for your help.

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Well... I would go with the better designed part (2012 version). It's not to say the other part won't work it will just breakdown over time unless you do some alterations to system to try to prevent the wear issues.Lastly, you don't need the bracket version for either.

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kristel vanmechelen will be eternally grateful.
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