My late 2012 MacBook Pro turns off at start screen
I Just got the display replaced on my late 2012 MacBook Pro and when I turn it on, a white screen shows up with a grey apple logo and a loading bar underneath. When the bar fills up about an inch, a gear circle shows up for a few seconda and my computer shuts off. Could anyone help me with this please?
MacBook Pro (13-inch Mid 2012), OS X Mavericks (10.9.4)