changed original 500 gb HD with Seagate 1TB SSHD got flashing "?"
Went to Apple Store and they said the original HD was shot and I needed a new one. I changed the original HD with a Seagate 1T SSHD. I now get the folder with the flashing ?. It's not the cable because I can put the old drive in and the white screen with the apple opens but can't finish loading (original problem leading me to the Apple Store). This leads me to believe it may be a bad HD.
I have been backing up with a Passport. Last one was 5 days ago. When I start up computer with this attached, it doesn't see any drives to transfer the info to.
This is the first time I have ever changed a HD. Do I need to format the drive so computer can recognize? How do I do that?
Is this a good question?