Chosen Solution
I’ve replaced the HD with an SSD in my MBP. If the case is open, it boots up perfectly. Once I screw the case closed, I get the Folder with Question Mark and the drive cannot be found. please help!
looks like the SATA cable is being pinched a little too much with the new drive. I rectified the problem with adding black friction tape doubled around the sata drive ribbon. Will replace cable.
