Hi All, Wondering if you can help me please. I have a 13" 2012 MBP upgraded with a Samsung 840 Pro 256GB SSD. Now the issue I had is that today, when adding a song into iTunes, it started coming up with errors. No issues I thought, just force quit iTunes and reopen, however, it would fail to reopen. I then decided to restart my mac, however, every time I clicked restart, it wouldn't restart, I therefore made the silly error of holding the power button to switch off, now, it won't boot up using the SSD. I've tried safe start, however to no avail. I have my original MacBook Pro HDD in a USB caddy which I left how it is. I am now booting of that and trying to copy my user files over to an external HDD. Went into disk utility and was told that my EFI is missing. I have ran "diskutil list" and this is what I've got: Please advise on what I can do, thanks!