Mid 2009 Model A1278 / 2.26 or 2.53 GHz Core 2 Duo processor EMC 2326

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Flashing question mark on startup,

The notebook does not think the internal HD by disk utility, I can boot from cd rom and the hd connected to the internal USB port, it is functioning normally. I installed another HD compatible and still does not recognize. It may be a defective cable or flex in the parent? Thanks.

Marco.

Answered! View the answer I have this problem too

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Performed the procedures suggested and still nothing.

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Could you restate the question. I just don't understand it as stated?

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1. Question mark at startup.

2. No problem in HD.

3. In disk utility the internal hard drive does not appear.

4. However, the USB port it works normally.

4. CD-ROM also gives boot.

5. I think the problem is with the flex cable from the HD.

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Guys, is not the flex cable problem, because the hd is running normally.

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At this point I would try replacing the cable as the most likely and least costly part. On general principles try resetting the PRAM and SMC--link provided. If these don't work get back to us.

http://support.apple.com/kb/HT3964

http://support.apple.com/kb/HT1379

MacBook Pro 13" Unibody Mid 2009 Hard Drive Cable Replacement

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Glad you could understand the question because I can't.

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Performed the procedures suggested and still nothing.

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Yes, Rj is correct. I would replace the flex cable. +

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I'm having the same problem. If I leave it alone on the table it works fine but when I lightly move my laptop around, the beach ball will spin continuously causing me to restart my laptop with the flashing question mark. What I did next was I opened my laptop up and played around with the flex cable and tried to restart it again. The laptop works after I dissected it but goes back to the beach ball spinning/flashing question mark if I shift it (i.e. leaving for school and putting the laptop in my backpack and opening it up again in class).

What I don't understand is that I had the flex cable replaced a few months back through Apple because I was having this same problem back then and now my hard drive is acting up again. I'm not under warranty anymore so what should I do? I know it has to be the loose connection between the HD and logicboard but I am lost. I'm using the broken laptop right now but it will probably act up again if I shift it around.

Note: I've never done any major damage to my laptop nor dropped it.

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Laptops are designed to be moved and moving yours should not be causing this problem. All I can suggest at this point is to remove the cable and clean the ends with an eraser. Clean the sockets with a toothbrush and contact cleaner-(make sure the power is off and the battery removed first). Then reinstall the cable and make sure of firm contact at the connections. Good luck.

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Marco will be eternally grateful.
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