Hello, I have a MBP Unibody 13 Mid-2012. It came originally with 500GB 5400rpm HD.
I replaced it into an OCZ Trion 240GB SSD Drive.
The problem is that the SSD does not boot properly (folder with question mark, or forbidden sign).
I have read that it might be a problem with the cable. The SSD boots up OK from external device.
The thing is that the cable works perfectly when I plug the original HDD. (Reason why I assume on Apple Store will tell me that is SSD fault and they won't change me the cable).
My question is: is this a cable issue (having to replace it) or is there any software or BIOS problem that makes non-original Apple pieces to work wrong?
Thank you very much!