new macbook air caught in loop at start up. Powers up then gets "dos like" commands on screen and shuts down. Powers up again on its own and repeats.
Just pulled the MacBook out of the box. Turned on the power and on the Apple screen a bunch of lines of command texts appear for about 10 seconds. The screen then goes blank and the computer shuts down. It then powers up again on its own and does the same thing again. How can this be fixed?