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

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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

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 work. it starts up and then turns off

My mac book pro starts up & then turns off. I know the memory was almost full so I bought an external storage and was going to start removing pictures to make more room, but now it won't let me work on it. it just turns right off. It's not the battery. has anyone had this problem? thanks

Hello Marcela100
Check out the article below for troubleshooting startup issues on your Mac.
Resolve startup issues and perform disk maintenance with Disk Utility and fsck
http://support.apple.com/kb/ts1417
Thanks for using Apple Support Communities.
Regards,
-Norm G.

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

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.

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 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

My Mac Book Pro has just had a new memory and solid state drive installed. After the installation, the Lightroom tools all became grey. There is no longer any color on the screen other than my picture. Even the color sliders are grey. Can you please help

My MacBook Pro just had a new memory and solid state drive installed. Since the installation, the Lightroom tools are now all grey. Even the color sliders are grey. Please help!

My guess is that your operating system got updated to Mavericks and that you are running an old version of Lightroom:
Sliders are white, look different | Mac OS X 10.9 Mavericks
Be aware of a Lightroom bug with color management in mavericks that makes shadows too deep in the Develop module: Jao's photo blog: Serious color management bug in Mac OS 10.9 "Mavericks" and Jao's photo blog: Further quantification of the Mavericks color management problem.

My mac won't turn on and when I plug in my charger the light flickers but it won't charge my mac

It suddenly turned off when I was using it and won't turn on and the charger light flickers and won't charge my mac

If you have another power cord try that, maybe you'll get lucky.

My iphone won't turn on at all and when i connect it to a charger the apple sign just flashes on and off but does not turn on?

I've tried charging it overnight and it still will not turn on, when connected to the charger the apple sign just goes on and off but does not do anything, i've tried resetting it and this also does not work, but then once taken off the charger it doesn't even say the sign for charging it just does nothing

Turn your phone off and connect your cable to the computer, but not the device just yet. Start up iTunes. Now, hold down the home button on your phone and plug it in to the cable - don't let go of the button until iTunes tells you it's detected a phone in recovery mode. Now you can restore to factory settings.

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.

Mac Book Pro won't sync iCal with iCloud

Hi
I'm running a Mac Book Pro (10.7.1) an iPad 2 and an iPhone 4. Both of the latter devices have been updated to IOS 5.
I'm a long standing MobileMe customer and I've been switching to iCloud today.
Generally things have gone smoothly. iCal was transferred from MbMe to iCloud without a hitch. Both the iPad and the iPhone were easy enough to switch across. And having done some tests now whenever the iCloud calendar is updated it appears on the portables and vica-versa.
However - iCal on the MBP isn't happy.
When I open it a pop-up appears saying "iCal can't log in to your "*****@me.com" account because your password may be incorrect". There's a button that then invites me to go to "MobileMe prefs" to address the issue. I do this. And several times I've signed out and signed back in using the correct user name and password.
The Account Status says " Your MobileMe account has been upgraded to iCloud". So, it seems that the password isn't an issue. However, iCal keeps telling me it is.
(Also, have just tried creating a new address on the MBP and another on the iPad - iCloud instantly reflected the latter but not the former. ie. it seems that the MBP isn't syncing to the cloud at all).
Any help/suggestions gratefully received.
(also, for your ref. I run Little Snitch - but I'm pretty sure it's not blocking anything)
Thanks
Ewan

Little Snitch... that is most likely the problem.
Nothing positive... LS has caused many a Mac user headaches.
Results from a Little Snitch (ASC) forum search here.

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

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