Currently Being ModeratedNov 16, 2012 1:58 AM (in response to Gilbert Ruegg)
As you're running Mountain Lion, have you tried booting to the Recovery partition (holding down the Command and R keys whilst booting)?
If you can get to the Recovery partition you can use Disk Utility to verify and, if needed, repair your hard drive.
If you can't boot to the Recovery partition, at least see if there is a hardware problem by running the Apple Hardware Test.
Good luck, call back...
Currently Being ModeratedNov 16, 2012 2:10 AM (in response to clintonfrombirmingham)
Clinton, should I try command +R + power button with or without the power cable? and do i just press the power button or hold it down till I see a screen? thanks, Gilbert
Currently Being ModeratedNov 16, 2012 2:17 AM (in response to Gilbert Ruegg)
Go ahead and try it with the adapter plugged into mains. You can hold down the power button first, then jump to the Command and R keys to see if you can boot into the Recovery partition.
Currently Being ModeratedNov 16, 2012 2:29 AM (in response to Gilbert Ruegg)
Clinton, Nothing happens. I pressed power on and followed by command + R. I kept pressing thes buttons for several minutes.
I have a black screen. I see the power light on (not flicking) - and I hear a fan. I did not get the start up tune.
The keyboard stays black. I do not see the green caps lock light.
Not sure what to do next.
Currently Being ModeratedFeb 24, 2013 11:21 AM (in response to Gilbert Ruegg)
Hi I am facing the same issue with my MacBook pro. The machine is very hot and I tried to reboot using the control and 'R' key.
No change the machine is over 4 years old.