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More detail: white macbook won't turn back on after sleeping overnight. power adapter goes green for a couple of seconds when plugged on and attached to the mac, then goes off.

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Remove the battery, then put the battery back in. Try a different power cord as well.

Posted on Aug 13, 2011

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4 Answers

Why wont my computer turn on macbook air. what do you think?


could be a number of things including the power block faulty, a break in the power lead, the power regulator in the macbook or even it's just plain old dead. if the macbook lights come on when it's plugged in and nothing else happens when you press the power button, odds on it's just dead.

Jan 30, 2015 | Apple MacBook 13"White /2.0Ghz Intel Core2...

1 Answer

Lap top will not turn on


There are a couple of things you can try. First let's make sure the battery has power. On the battery there is a little white button next to some LED lights. Press the button if you get no LED lights (they should be green) you have no power, if you get one fast blinking LED you have no power. Plug in your power suuply and make sure the green/orange light comes on on the adapter right where it attaches to the laptop. If you need to you can try a different power adapter if you can find on available from a friend or a store. Assuming you have power we could try reseting the SMC. Press and hold the power button for 10 seconds to make sure the power on the laptop is off. Unplug the power cord and using a coin or key to turn the circular lock, remove the battery from the laptop. Next with the battery out and the power unplugged press and hold the power button for 5 seconds then release. Replace the battery and lock into place. Plug in the power cord. Wait 5 minutes and then try to power the laptop on with the power button again. Hopefully this helps.

Apr 09, 2011 | Apple MacBook 13"White /2.0Ghz Intel Core2...

1 Answer

MacBook Air 11" won't power


1. Verify AC power presence with MagSafe LED indicating on or charge state.
2. Verify battery as being partly charged, with orange/amber LED on MagSafe power connector.
3. Reset SMC
Resetting the System Management Controller (SMC) The System Management Controller (SMC) is a chip on the logic board that controls all power functions. If the computer is experiencing any power issue, such as not starting up, not displaying video, sleep issues, or fan noise issues, resetting SMC may resolve it. To reset SMC: 1. If computer is on, turn it off by choosing Shut Down from the Apple menu. 2. Connect power adapter to computer and to a working power source. 3. On built-in keyboard, press (left-side) Shift-Control-Option along with power button just once. Important: Use Shift-Control-Option keys on left side of keyboard. Note: When the LED on the MagSafe connector is orange/amber, resetting the SMC will change it to green for a few seconds, indicating that SMC was correctly reset. 4. Wait 5 seconds and press power button to start computer. Note: If bottom case is removed, you can alternately reset SMC by disconnecting both power adapter and main battery, and holding down power button for 5 seconds.

Power Adapter Issues 1. Connect AC adapter's MagSafe connector to the computer. The LED on the connector should be green or orange/amber. 2. Verify power cord or duckhead is firmly attached to AC adapter. Check that duckhead is not damaged. 3. Verify AC power source is supplying AC power. 4. Check for dirty or stuck pins on the MagSafe connectors, both on the adapter and the computer. 5. Reset SMC by pressing the (left) Shift-ControlOption(Alt) keys along with the power button once.

Jan 29, 2011 | Apple MacBook Air

2 Answers

How do you reboot a apple laptop, my laptop is messed up!?


When you mentioned in the issue detail, that your Macbook portable "is messed up", without more details, I honestly cannot tell to what extent you are having issues with your Macbook.

So to better assist you, I am going to provide a few troubleshooting steps to see if this can help with your Macbook's rebooting up to the desktop normally.

Procedure #1
Here are some steps you can try to resolve the issue:
• First, hold in your power button for approximately 10 seconds to do a hard shutdown.

• Once your Mac is shutdown, you will need to perform what is called a PRAM reset (Parameter RAM)
This should help with the freezing issue:

• Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously .

• Turn on the computer.
• Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.

• Now, hold the keys down until the computer restarts and you hear the startup sound for the third time.

• Release the keys and allow the Macbook to start up.

If the PRAM reset still does not help, try this second procedure below.
----------------------------------------------------------------------
Procedure #2

-SMC RESET-
The System Management Controller is an integrated circuit (computer chip) that is usually on the logic board of your Mac portable.

It is responsible for power management of the computer. It controls backlighting, hard disk spin down, sleep and wake, some charging aspects, trackpad control, and some input/output as it relates to the computer sleeping.

Shut down the computer.
• Disconnect the MagSafe power adapter from the computer, if it's connected.
• Remove the battery.
• Press and hold the power button for 5 seconds.
• Release the power button.
• Reconnect the battery and MagSafe power adapter.
• Press the power button to turn on the computer.
------------------------------------------------------------------
Give this a try and you should be able to boot up normally. If not, let me know.

Thanks!

Regards,

-Mactechtrainer

Jan 31, 2010 | Apple MacBook 13"White /2.0Ghz Intel Core2...

1 Answer

Mac book chimes on start up but no screen comes on


Make sure the MagSafe adapter is securely attached to the Macbook and free of debris.

There are two procedures that are advised by Apple to assist in resolving issues where the Macbook chimes at start up, but displays no video.

Here is the first procedure:
Here are some steps you can try to resolve the issue:

• First, hold in your power button for approximately 10 seconds to do a hard shutdown, if you have not already turned your Mac off.

• Once your Mac is shutdown, you will need to perform what is called a PRAM reset (Parameter RAM)

• Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously .

• Turn on the computer.
• Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.

• Now, hold the keys down until the computer restarts and you hear the startup sound for the third time.

• Release the keys and allow the Macbook to start up.

Observe to see if your Macbook will boot to the Desk top normally. If it does not, here is the second procedure:
-------------------------------------------------------------------
-SMC RESET-
The System Management Controller is an integrated circuit (computer chip) that is usually on the logic board of your Mac computer.

It is responsible for power management of the computer. It controls backlighting, hard disk spin down, sleep and wake, some charging aspects, trackpad control, and some input/output as it relates to the computer sleeping.

• If the computer is on, turn it off.
• Disconnect the AC adapter and remove the computer's battery.
• Press and hold the power button for 5 seconds
and then release the button.
• Reconnect the battery and AC Adapter.
• Press the power button to restart the computer

Update me if you require further assistance.

Regards,

-Mactechtrainer


Jan 31, 2010 | Apple MacBook 13"White /2.0Ghz Intel Core2...

1 Answer

My Macbook Pro is not starting, it seems it goes


Try starting up in Safe Mode by holding down the shift key. That will be a start to get you into the System Preferences, find your Power Saver preferences and turn Sleep off.
Hope this helps!

Dec 28, 2009 | Apple MacBook Power Inverter Car Adapter

1 Answer

Macbook goes to sleep and doesn't wake up unless I do a hard reboot.


I have seen this caused by having a mouse plugged into mine. I have removed the mouse and touch the touchpad and it has come up from sleep.

That very well may not be your problem.

Here is the procedure that is recommend from Apple to help with the not waking from sleep problem. I included both methods as it is not clear which macbook you have. I also included the link to the article at the bottom.

The System Management Controller is an integrated circuit (computer chip) that is on the logic board of the computer. As the name implies, it is responsible for power management of the computer. It controls backlighting, hard disk spin down, sleep and wake, some charging aspects, trackpad control, and some input/output as it relates to the computer sleeping.

Over time, the settings in the System Management Controller may become unusable, which can result in operational anomalies with the computer. Examples include not turning on, not waking from sleep, not charging the battery, or not recognizing the AC Adapter, among others.

MacBook (13 inch, Late 2008), MacBook Pro (15-inch, Early 2008), and MacBook Pro (17-inch, Early 2008)
  1. If the computer is on, turn it off.
  2. Disconnect the AC adapter and remove the computer's battery.
  3. Press and hold the power button for 5 seconds and then release the button.
  4. Reconnect the battery and AC Adapter.
  5. Press the power button to restart the computer
Note: Starting with MacBook Pro (Late 2008) and MacBook (Late 2008) models, you may instead use the reset method for MacBook Air (below) to reset the SMC. All earlier models of MacBook and MacBook Pro must use the method described above, which involves removing the battery.
MacBook Air and MacBook Pro (Late 2008 and later)
  1. If the computer is on, turn it off by choosing Shutdown from the Apple () menu.
  2. Connect the power adapter to a working power source.
  3. On the built-in keyboard, press (left) Shift-Control-Option along with the power button once.
  4. Wait 5 seconds and press the power button to start the computer.
Note: You must use the keys on the left side of the built-in keyboard.


Here is the link to the article at the Apple support site.

http://support.apple.com/kb/HT1411

Aug 28, 2009 | Office Equipment & Supplies

1 Answer

Will not power up but looks charged have it


Sometimes these macbooks will go to sleep...appear to be off, but the white pulsing light on the front still is working... the solution if this is the case is to press and HOLD the power button for several seconds... you will hear the hard drive wind down to a stop. Then wait a couple seconds and reboot.
let me know if this gets your PBpro back up!
K

Aug 02, 2009 | Apple MacBook 13"White /2.0Ghz Intel Core2...

2 Answers

How do I attach a larger screen to my MacBook?


To operate your portable computer with an external monitor attached and the display closed:
Connect a USB keyboard and mouse to your portable.
Connect the power adapter to the portable and a power outlet.
Close the portable display to put the computer to sleep.
Connect your portable to an external display.
Wait a few seconds and then press any key on the external keyboard to wake the portable.

Jul 06, 2009 | Apple Macbook keyboard cover black

3 Answers

When i try to turn on my macbook nothing shows up on the screen and the white light on the bottom right turns on and stays on


Plug the power adapter in. Then hold down the startup button for 15 seconds. The light should go off and then after a few seconds. restart normally. The macbooks have a safety device that will lock up the drive if it detects sudden movements to protect the drive...
Let me know if you're back up and running. KEN

Apr 24, 2009 | Apple MacBook 13"White /2.0Ghz Intel Core2...

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