The Apple Store told the problem was coming from the hard drive, but it is wrong as thus is in perfect condition. I tried several times to make sure that the problem was not coming from the cable. Other hard drives from all brands (Seagate, Western Digital, Toshiba, Hitachi), but with non-Apple firmware, are not detected.īy "not detected" I mean that the drive is not listed when holding down the Alt button at start. Some hard drives with the Apple logo are detected. So, I first suspected the SATA cable (altough looked in perfect condition), but: The system loads perfectly if the hard drive is put in an external enclosure and the MacBook booted from there. The partition table is in perfect condition (checked with the disk utility from another MacBook, with the drive in an external enclosure) The hard drive is physically in perfect condition, with all SMART values checked OK. Suddenly, the hard drive became totally undetected when within the MacBook: the system cannot boot and the hard drive is totally unvisible it does not show when holding down the Alt key at start (just after powering the MacBook on).
The MacBook was working perfectly until a recent system update. Inside it is a 1TB FireCuda SSHD (ST1000LX015) hybrid hard drive.
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