Hello, So i am having a few issues here. I have a solid state drive and a regular drive that i cant get working in either Macbook Pro's i have. I took both drives and formatted them in my Mac Pro to OS Extended (Journaled). I have then tried putting the drives in either macbook pro and i get the blinking "?" folder every time. I tried holding doing the "c" key and still nothing. Both theses drives were just working in the computers but something went wrong when i tried to just plug in the SDD from one Macbook pro to another in hopes i could just run the new macbook pro just as i had the old one. Any help would be so great! Thanks!