Robert Stone wrote:
This is very odd that I have had this issue as well just today - my wife used the MBP, no problems, no drops or damage - then closed the cover as usual to put it to sleep. Then upon opening it again it does not wake, steady "sleep" light and restarts to no avail. No target disk mode. No startup chime. What gives? We're all having the same issue just about 3 years after purchase. Anyone out there with any success at reseting this - how about anyone who has replaced the backup battery on the logic board? On prior Macs funny things sometimes happen when that fails...
I had this exact same thing happen to me two and a half months ago on an early 2008 MBP. Computer went to sleep during the night, came in the next morning and the sleep light going on and off like normal. I tried to wake up the computer by pressing keys on the keyboard but it wouldn't wake. I held down the power button and the sleep light turned off. I pushed the power button again to turn it on and nothing happened. No screen, no chime, nothing. Took it into an Apple Store and they determined the logic board failed and they also replaced an "I/O cable".
The guy at the Apple Store told me one of the tell tale signs that the logic board is going out is sometimes problems with the iSight camera. I mentioned to him that in the year prior when I was on Skype calls, every few minutes the iSight green light would turn off on its own and then turn right back on. It was annoying, but I lived with it. He said the logic board was probably the culprit. In the two months since I had the board replaced, I've had no problems with the iSight camera turning on and off and then all of a sudden, it started happening again yesterday. I'm one month away from being out of AppleCare on this laptop. I'm going to monitor it for the next few weeks and if it gets worse, I'm taking it in again before AppleCare runs out.
There's no way I'm spending another $2,700 to get a new laptop when the machine I have is fine except for the logic board problems. Now, if Apple wants to own up to the logic board issues in the late 2007/early 2008 MBPs and give me a $1,000 or $1,500 credit toward purchasing a new one, I may seriously think about it. Otherwise, in my opinion, a laptop that's well taken care of should have a longer lifespan than two and a half to three years.