Macbook Pro Early 2011 does not see the new SSD
Hello everybody.
I have bought Transcend SSD for 256 GB (TS256GSSD370S) and placed it in place of the native HDD.
But macbook can see the drive only 1 time from 5 or 6.
Can anyone help me, please???
MacBook Pro, OS X Yosemite (10.10.4), null