Mac Book Pro won't turn on

I have a september 2008 Mac book Pro 15". Last night it switched itself off for no reason. I was able to turn it back on again and carry on using. Today however it won't turn on or do anything. I have checked the battery and it is charged. The power adapter is also fine (tried a different one as well), but when I press the power button, nothing whatsoever happens. Anyone got any suggestions?! Thanks

See if this offers any assistance. if not, then a trip to a repair facility is in order.
http://support.apple.com/kb/TS1367
Ciao.

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My mac book pro won't turn on, My mac book pro won't turn on

My mac book pro won't turn on, My mac book pro won't turn on

Go step by step and test.
http://support.apple.com/kb/TS1365
Note: Steps 5 and 6
Step 5
Reset SMC. http://support.apple.com/kb/HT3964
Choose the method for:
"Resetting SMC on portables with a battery you should not remove on your own".

My Mac book pro won't turn on at all and when i put it to charge the light blinks, what should I do?

My Mac book pro won't turn on at all and when i put it to charge the light blinks, what should I do?

Yes if your model MBP has a removable battery. If it does not:
Shut down the computer.
Plug in the MagSafe power adapter to a power source, connecting it to the Mac if its not already connected.
On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time.
Release all the keys and the power button at the same time.
Press the power button to turn on the computer.
Note: The LED on the MagSafe power adapter may change states or temporarily turn off when you reset the SMC.
http://support.apple.com/kb/HT3964

Mac book pro won't turn on after after accidentally shutting it down during updating

Please help, I was updating my Mac book pro and accidentally shut it off. Now it wont turn on, it shows the apple logo and the continuous cycle circle.

Take each of these steps that you haven't already tried. Stop when the problem is resolved.
Step 1
The first step in dealing with a boot failure is to secure your data. If you want to preserve the contents of the startup drive, and you don't already have at least one current backup, you must try to back up now, before you do anything else. It may or may not be possible. If you don't care about the data that has changed since your last backup, you can skip this step.
There are several ways to back up a Mac that is unable to boot. You need an external hard drive to hold the backup data.
a. Boot into the Recovery partition, or from a local Time Machine backup volume (option key at startup.) When the OS X Utilities screen appears, launch Disk Utility and follow the instructions in this support article, under “Instructions for backing up to an external hard disk via Disk Utility.”
b. If you have access to a working Mac, and both it and the non-working Mac have FireWire or Thunderbolt ports, boot the non-working Mac in target disk mode. Use the working Mac to copy the data to another drive. This technique won't work with USB, Ethernet, Wi-Fi, or Bluetooth.
c. If the internal drive of the non-working Mac is user-replaceable, remove it and mount it in an external enclosure or drive dock. Use another Mac to copy the data.
Step 2
Press and hold the power button until the power shuts off. Disconnect all wired peripherals except those needed to boot, and remove all aftermarket expansion cards. Use a different keyboard and/or mouse, if those devices are wired. If you can boot now, one of the devices you disconnected, or a combination of them, is causing the problem. Finding out which one is a process of elimination.
If you've booted from an external storage device, make sure that your internal boot volume is selected in the Startup Disk pane of System Preferences.
Step 3
Boot in safe mode. Note: If FileVault is enabled, or if a firmware password is set, or if the boot volume is a software RAID, you can’t do this. Post for further instructions.
Safe mode is much slower to boot and run than normal, and some things won’t work at all, including wireless networking on certain Macs.
The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
When you boot in safe mode, it's normal to see a dark gray progress bar on a light gray background. If the progress bar gets stuck for more than a few minutes, or if the system shuts down automatically while the progress bar is displayed, your boot volume is corrupt and the drive is probably malfunctioning. In that case, go to Step 5.
If you can boot and log in now, empty the Trash, and then open the Finder Info window on your boot volume ("Macintosh HD," unless you gave it a different name.) Check that you have at least 9 GB of available space, as shown in the window. If you don't, copy as many files as necessary to another volume (not another folder on the same volume) and delete the originals. Deletion isn't complete until you empty the Trash again. Do this until the available space is more than 9 GB. Then reboot as usual (i.e., not in safe mode.)
If the boot process hangs again, the problem is likely caused by a third-party system modification that you installed. Post for further instructions.
Step 4
Sometimes a boot failure can be resolved by resetting the NVRAM.
Step 5
Launch Disk Utility in Recovery mode (see Step 1.) Select your startup volume, then run Repair Disk. If any problems are found, repeat until clear. If Disk Utility reports that the volume can't be repaired, the drive has malfunctioned and should be replaced. You might choose to tolerate one such malfunction in the life of the drive. In that case, erase the volume and restore from a backup. If the same thing ever happens again, replace the drive immediately.
This is one of the rare situations in which you should also run Repair Permissions, ignoring the false warnings it may produce. Look for the line "Permissions repair complete" at the end of the output. Then reboot as usual.
Step 6
Reinstall the OS. If your Mac was upgraded from an older version of OS X, you’ll need the Apple ID and password you used to upgrade.
Step 7
Repeat step 6, but this time erase the boot volume in Disk Utility before installing. The system should automatically reboot into the Setup Assistant. Follow the prompts to transfer your data from a Time Machine or other backup.
Step 8
This step applies only to a pre-2013 Mac Pro tower, not to any other model. A dead logic-board battery can cause a gray screen at boot. Typically the boot failure will be preceded by loss of the startup disk and system clock settings. See the user manual for replacement instructions.
Step 9
If you get this far, you're probably dealing with a hardware fault. Make a "Genius" appointment at an Apple Store to have the machine tested.

Mac book pro won't turn on mavericks

I successfully upgraded to Mavericks 2 weeks ago and have been having sporadic problems.
Today my Mac Book Pro 15" 2012 edition (not retina) turned off while I was using it and will not turn back on.
Anyone have a similiar problem?

Hello ColeSF,
It sounds like you have been using OS X 10.9 for a bit and suddenly in the middle of using it, the computer shut down will not turn back on. I was researching what could be causing this to happen and found this article that should help you troubleshoot the issue named:
Troubleshooting: My computer won't turn on
http://support.apple.com/kb/TS1367
Verify you have a good connection from your Mac to the wall outlet by confirming the power cord and adapter if present are securely connected and plugged in. To check if the wall outlet is working, plug in a lamp or other electrical device.
If the wall outlet is working and you continue to have no power try another power cord or adapter if available. If it works you may need a replacement cord or adapter.
Note: See Apple Portables: Troubleshooting MagSafe adapters for further troubleshooting with MagSafe adapters.
Disconnect all accessories that are plugged in to the computer, such as a printer, hub, or other mobile device.
If your Mac supports user-installable memory, solid state drive, or hard drive, and you recently installed any of these, make sure they are installed correctly and are compatible with your computer. If possible, reinstall the original memory or drive into the computer to find out if the behavior persists afterwards.
MacBook Pro: How to remove or install memory
MacBook: How to remove or install memory
Mac Pro: How to remove or install memory
Mac mini: How to remove or install memory
iMac (27-inch, Late 2012): Installing or replacing memory
iMac: How to remove or install memory
Reset the SMC.
If you are still unable to start up your computer after trying each of these steps, visit an Apple Store or Apple Authorized Service Provider (AASP) for further diagnosis. If you plan to visit an Apple Retail Store, make a reservation at the Genius Bar using http://www.apple.com/retail/geniusbar/ (available in some countries only).Note: Diagnostic fees may apply for issues not covered under warranty or the AppleCare Protection Plan (APP).
Thank you for using Apple Support Communities.
All the very best,
Sterling

Mac Book Pro won't turn on or power up

i have had my mac book pro for less than a month and today it turned off and wont turn back on, the power cord light flashes orange but wont change the computer. any suggestions?

Take it into your local Apple Store or an AASP. You shouldn't be having those sort of problems on a month-old computer.
Clinton

Mac book pro won't turn on black screen and capslock key on

Macbook pro won't turn on - black screen and caps lock light is on

Hi Daleobrien73,
Welcome to Apple Support Communities.
You may find some useful suggestions for troubleshooting your MacBook Pro in these articles:
Apple computers: Troubleshooting issues with video on internal or external displays
http://support.apple.com/kb/HT1573
Troubleshooting: My computer won't turn on
http://support.apple.com/kb/ts1367
Best,
Jeremy

Mac book pro won't turn on and battery is fully charged..

My Mac book won't turn on... The battery is fully charged, we have it hooked up to power... We've tried holding power button down and disconnecting from power but nothin have worked! It makes a noise like its going to turn on and little white light flashes but nothing happens

Try a safe boot, see if it starts, this takes a bit longer. Push power button while holding shift key, continue to hold key till you see the progress bar. If it boots, shut down and try to boot in the normal way. Best

Unibody 15" Mac Book Pro won't turn on after Left Fan replacement

Hi Guys,
Over the last few days the crackling noises from my fan had gotten worse, so I decided to take some action and I replaced fan myself.
Now I've fitted the new fan but when I try to turn the computer on, nothing happens, nothing at all.
The power button seems unresponsive. I've tried starting the computer both with a fully charged battery and on only power but this still doesn't seem to work.
Could someone please advise!
Thanks!

kavinbm wrote:
Over the last few days the crackling noises from my fan had gotten worse, so I decided to take some action and I replaced fan myself.
You have a machine that's still under the manufacturer warranty, and you decided to DIY (do-it-yourself) and you DIW (did-it-wrong). Not sure why you wouldn't just have taken it in for service...
Take it to Apple. You'll have to pay for them to fix it now, in all likelihood, since you caused a bigger problem by attempting to fix the original problem yourself.

HT3205 My mac book pro will not turn on. The light on the battery charger is weak, barely visible.

I recently purchased an iphone 5s. After returning home form the apple store, so very excited to sync my new device, my mac book pro won't turn on.
it was last used 3 hours prier to me returning home. It won't turn on, the charger light is weak, barely visible. When I plug the charger to another device it works fine. Before I take it to be repaired I would like to get a general idea of the problem, as well as an estimated cost.

A. We have no idea what the problem might be.
B. We have no ideaa what it will cost to repair it.
C. Please make a Genius Appointment and take it in for service.

HT201177 My Mac book pro won't re-start. The apple sign stays on for a while, that little circle keeps spinning and nothing happens. After 10 minutes rebooting the screen turned blue and nothing was on besides the cursor. what should I do? Thanks.

My Mac book pro won't re-start. The apple sign stays on for a while, that little circle keeps spinning and nothing happens. After 10 minutes rebooting the screen turned blue and nothing was on. now I just re-tried and lots of pixels came up. what should I do? Thanks anyone.

My Mac book pro won't re-start. The apple sign stays on for a while, that little circle keeps spinning and nothing happens. After 10 minutes rebooting the screen turned blue and nothing was on. now I just re-tried and lots of pixels came up. what should I do? Thanks anyone.

Ipad is asking for a passcode which I never installed. iPad is now disabled. Tried syncing to itunes with my mac book pro, won't sync. How do I fix this?

ipad is asking for a passcode which I never installed. iPad is now disabled. Tried syncing to itunes with my mac book pro, won't sync. How do I fix this?

Recovery Mode
1. Disconnect the USB cable from the device, but leave the other end of the cable connected to your computer's USB port.
2. Turn off the device: Press and hold the Sleep/Wake button for a few seconds until the red slider appears, then slide the slider. Wait for the device to turn off.
3.While pressing and holding the Home button, reconnect the USB cable to the device. The device should turn on.
4. Continue holding the Home button until you see the "Connect to iTunes" screen. When this screen appears, release the Home button. iTunes should alert you that it has detected a device in recovery mode. Click OK, and then click Restore to restore the device.
Note: Data will be lost. You may have to repeat the above many times.

My Mac book pro won't charge. But the connector is plugged in and shows that its charging but it says it has 0% but if I unplug it it will shut off

My Mac book pro won't charge. But the connector is plugged in and shows that its charging but it says it has 0% but if I unplug it it will shut off. It's been like this all day but I didn't notice till I turned it on.

It's either a power adapter issue (not likely) or (more likely) a power supply problem on your MBP. Take the machine into your local Apple Store or an AASP and have them diagnose the problem.
Good luck,
Clinton

My Mac book pro won't print to canon IR-ADV C5035 wirelessly but my I pad will

My Mac book pro won't print to canon IR-ADV C5035 wirelessly but my I pad will

It is very difficult to offer troubleshooting suggestions when the "os version" you are using is unknown as each os has their own troubleshooting solutions.
Please describe in detail all you have attempted to do in order to resolve the issue. Contacted Canon's tech support for instance?

My Mac book pro is not turning on keeps on making very annoying beeping noises. I need to know how to fix it NOW

My Mac book pro is not turning on keeps on making very annoying beeping noises. I need to know how to fix it NOW

Beeps on startup:
1 beep = no RAM installed
2 beeps = incompatible RAM types
3 beeps = no good banks
4 beeps = no good boot images.
5 beeps = processor is not usable
http://support.apple.com/kb/HT2538

Mac Book Pro won't turn on

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