Hi,
I have a MacBook Pro, mid-2011,8,1.
I had a Crucial SSD M4, 512 Go that today seems to be dead IO/Error, not recognized anywhere, so I bought a new SSD.
I just got a Samsung SSD 830, 256Gb, (7PC256) and it is not recognize as internal disk on my MBP.
I tried :
- as external drive of the macbook pro : worked
- as internal on two computers (sata 2 & sata 3) : worked
- as external computer disk (usb 2) : worked
- boot from internal harddisk with MacOSX Lion and try to detect SSD as external : worked.
- boot from external disk with MacOSX Lion and try to detect internal Samsung SSD : failed
The SSD seems to worked everywhere, but not as internal of my MBP 8.1, with SSD as internal disk, tried too :
- reset PRAM/NVRAM : failed
- change RAM (from 8Gb to 4Gb (Kingston, 1333Mhz)) : failed
- boot from Ubuntu : failed
The disk is not recognized = not seen in system profiler, not seen in fdisk (Ubuntu); not seen in diskutil, not seen in boot device chooser (option key pressed during boot).
The problem is : the SSD works, so the vendor do not want to echange it, and the MBP worked with others SSD and HDD, and Apple cannot supply maintenance for third party SSD.
I've seen for EFI update (2.8 :
http://support.apple.com/kb/DL1502), I tried to install from a HDD, but : "This software is not supported on your system."
What should I do ?