My macbook recently got the infamous question mark folder and failed to boot so i did my research and bought a hdd cable, i followed the instructions on this website and replaced the cable however nothing changed.... I really don't know what's the problem can someone help?
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I have purchased a "new tested" hdd cable for a Mac on Amazon... I'm international, so just to be sure, I got 3! 1 of them didn't work right out of the bag....
It is a possibility that you got a faulty one, also when screwing it down on the case, those bends can be pretty tough on the cable/ribbon and kill it of its not just right.
First I would recommend getting another known good cable, test it with your hdd before screwing it down.
If still no luck, when that cable fails, it has been known to damage the motherboard in some occasions too, so that would be the second step. Going over the board - back side I believe - and checking for any components that look like they might have fried.
Good luck! I hope it's only another bad cable :)
If this is the solution for you, feel free to mark it as the answer!
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Joseph ( @joesipaq ) is correct you could have gotten a bad cable.
But your drive may need a little TLC here as well. Are you able to boot up under an external drive? If you are see if Disk Utility see's the drive. You may need to reformat it. If you can't the drive make be also damaged or the wrong one for this system. Keep in mind this systems SATA ports are only SATA II (3.0 Gb/s) so make sure the drive you have is able to run at this speed (review the drives spec sheet).
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i do not know as yet , the cable i bought was cheap and probably fake so i will try one on ifixit and see what the results are
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