SSD doesn't boot properly.
Hello! I have upgraded my friend's MacBook Pro 13" Retina Display Late 2012 with a Samsung 850 EVO 500GB SSD.
The thing is that it doesn't boot properly....sometimes boots and sometimes no...it shows the prohibitory sign....after 2 or 3 reboots it opens...not always...i repaired the disk once again with disk utility and it worked ok for about 10 hours while it's on...but if i reboot agaiiiinnnnnnnn the prohibitory sign...
The thing is that i haven't enabled the TRIM..is it necessary for it to work properly because it's an aftermarket SSD???...i guess no...Also it works perfectly with an HDD drive...no matter how many reboots i do, it is working perfectly...wherever i plug in the SSD...it works until i close it or reboot it or put it into sleep mode...
Please give me your advice!
Questa è una buona domanda?
6 Commenti
I'm confused here!! You selected a MacBook Pro Retina as your system, but the Retina models use a custom Apple PCIe blade SSD.
You also state you are using a Samsung 850 EVO SSD. Samsung makes a 2.5" drive and a M.2 drive, neither will work in your Retina system.
So we must be working on a different system here. Please give us the full serial number for the system so we can look it up.
da Dan
FYI: About the screens you see when your Mac starts up
da Dan
Dan i'm sorry...it's the mid 2012..the last one with an hdd drive...i don't have the serial right now..tomorrow i will..!
da Vasilis
I've corrected the model to the 13" Unibody hopefully thats the correct unit.
da Dan
hey do u solve this by changing the cable? i have the same problem, i changed the cable also but the problem still occur. do i have bad replacement cable?
da blackvai
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