I've had the same problem with a hard drive in the past, took it into a mac store and it was actually the HD despite what the apple diagnostic test said. I got a new hard drive under applecare. Otherwise you'll need to replace it I think... ifixit will help you get do this if you choose to.
I've had the same problem with a hard drive in the past, took it into a mac store and it was actually the HD despite what the apple diagnostic test said. I got a new hard drive under applecare. Otherwise you'll need to replace it I think... ifixit will help you get do this if you choose to.