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Check the battery by pushing the button on the bottom, if it shows one light flashing or no lights then the battery is discharged. The problem may be with the ac adapter. Many of these connectors fail after a while and they don't charge the system, which means when the battery dies, there is no more turning on.
A flashing folder at startup means that the Mac doesn't recognize your system. This can be either a hardware or software problem. The hardware problem would be the hard drive, and the software the OS.
So these are the steps you should proceed:
1) Check your hard disk by using your install DVD (press the c key at startup), choose your language, go to the utilities menu and hit Disk utility. go to SOS tab and select your hard drive on the left. Click "repair volume" and check what happens.
2) reboot, if it does not recognize the system again, reinstall it using the "archive-install" option
http://www.ifixit.com/Guide try this location for a guide
re-set your pmu 1. disconnect battery and power supply
2. hold down start button for 5-6 seconds
3. re-connect battery and power supply
try to start
if nothing might be your dc-in board/ has failed
Hey, if this problem still exist for you... try this.
Hold down the power button and see if the computer responds. If you hear a loud beep sound, that's good. Release the power button... The computer should come on.
Of course if that doesn't work. Try checking to see if the battery has any charge by pressing the button on the bottom of the batter. Use those light sensors to determine the charge level of the batter. If there is just one light flashing, the battery is not charged. Give it some time to see if it changes.
You can also, just remove the battery, plug in the power cord again, and then try to power on the computer.
Let me know if any of this helps.(if its not too late) = |
Anywho, have a great day!
Some computer react this way when the logic board goes bad or have a defect in it.
First, Try this:
Remove the battery. Plug back in the power cord, then press and hold down the power button til you hear a loud beep sound. then release it. If the computer starts back up... Then you should be okay.
If not, it may has something to do with the logic board.
Let me know if the above works...
We may can try some other things if not.