Goodevening, I bought a Crucial BX300 240GB for a Macbook Pro Early 2011. First I tried a clone of my actual disk and after cloned I mount disk inside Mac with your instructions but Mac seems not seeing disk. Second, I attached and inizialize SSD via USB port with Disk Utility like OS X Extended Journaled then I make an USB key with High Sierra OSX and insert it again inside Macbook Pro but again, Disk Utility seems not seeing disk. I can't use this SSD like main disk and I not understand why. If I load disk via USB port I can see disk but if I load disk attached to main board inside Mac I cannot see disk. It seems like a trouble with BIOS and disk or something else. Can you help me ?
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