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Early 2011 Model: A1278 / 2.3 GHz i5 or 2.7 GHz i7 processor

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MacBook Pro 2011 Won't boot from a internal SSD

Hi

My system will not boot if I put a Bootable SSD internal, the same SSD will boot from a USB enclosure, I have change the HHD Cable 2011 with one from Amazon and still no luck.

The system will boot fine from a 1.5t HHD internal or USB I can even boot from a SD card.

if I hold down the option key with the SSD internally the system sees it and the recovery drive but when I select it I just get the flashing folder..

so I have read that I should order the 2012 cable as it is much better then the 2011 cable.

any help wold be great

Terry

Answer this question I have this problem too

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I would still replace the HD cable as SSDs run harder so a weak cable often shows up under it Vs a HDD.

Did you select it as your boot drive?

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Yes I replaced the cable from Amazon and still no luck, but the same SSD will boot fine from a USB enclosure

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@Terry Genereaux - Did you check the startup drive within prefs? Also did you install the same OS version your HDD has?

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Terry Genereaux will be eternally grateful.
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