2012 MacBook pro will not power up sleep light on then off

Please help my mid 2012 MacBook pro will not turn on. When I press the power button the light on front comes on and the cd rom drive attempts to start then it shuts back off. I have tried holding down the power button and pressing the button combo to reset the controller. Thanks for any help.

You may have to take the MBP to the Apple store as soon as possible.
Best.

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Sleep light is on but MacBook pro will not power up

Sleep light is on but MacBook pro will not power up

Hi a,
If the sleep light is already on when you try to start up, that means the MBP isn't shut down, so cannot start up. Hold down the power button for 5-10 seconds to shut it down, then try starting up.

My 13.3" macbook pro will not power up.The battery indicator light does not come on.The Mag safe charging light flickers green and red dimly.I had a cell phone connected to the USB port.

My 13.3" macbook pro will not power up.The battery indicator light does not come on.The Mag safe charging light flickers green and red dimly.I had a cell phone connected to the USB port.

This didn't work for me, so I did a bit of searching and TONS of pages later in google, I found an answer. Here are the steps for people who also were in my situation:
1. Take off bottom case
2. Unplug battery - blurry image here: http://i.ytimg.com/vi/03cC79r5Dx4/0.jpg
3. Press and hold power button for 5 seconds
4. Plug a charger in, and it should start booting up
5. After shutting down again, reconnect the battery and close the case up
6. It works! (hopefully, if you guys had the same situation I did)

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My MacBook Pro will not power on. It was charged and then just shut off and power cord does not even light up. How do I fix this?

jpg8,
which model MacBook Pro do you have, and which version of OS X is installed on it?

My macbook pro will not go to sleep

Macbook pro will not sleep by any means except when it is on battery and if I plug the power back in it will stay sleep for a while and wake up on its own. I have spoken with express lane and verified the HD and the premissions, etc. and it worked for a when and the problem returned.

My MBP does this on occasion as well.
It also used to make a terrible processor noise, but I just got the logic board replaced through apple care. So far it has not had the sleep problems since i got it back, but it has only been a week, so who knows.
also make sure you have updated the firmware, if you have one of the early models it may be outdated (like mine).
I never did figure out a permanent solution, but it seems like it happened a lot less after the firmware update.
Good luck, I'll let you know if mine is in the clear with the new logic board

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Okay... so i have this issue with my MBP where it will not power up.
The light on the magsafe does not show up at all when connected to the MBP. I have tried another magsafe but failed. I have not tried another battery so im not sure if that is wheret the fault lies.
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Hi s.cheslik,
It seems your MacBook Pro will not boot properly and it displaying an error message. Based on the information you have provided, it appears your MacBook Pro needs to be serviced. The following link should help you get started with the process and has links with additional information on topics such as warranty and service pricing, battery replacement, and express replacement service.
Apple - Support - Service Answer Center
Thank you for contributing to Apple Support Communities.
Take care,
Bobby_D

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like mine... http://www.youtube.com/watch?v=C-ZFewhxYi0

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Then your problem isn't with the charger/adapter. Which model MacBook Pro do you have (e.g., "15-inch Late 2011")?
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Clinton

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OK.
Right side of your original post under More Like This, there is an answered question marked with a green
Check mark. Check it out . It is about Mac not sleeping when charger attached.
It is about file sharing being on.
Best.

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Hi everyone, i have been having a problem recently with my MacBook Pro, and as the title suggests i am having a problem with putting my computer to sleep. For some reason when i shut the display to put the computer to sleep, the computer never actually goes to sleep. The light on the open button turns on but it doesn't turn to the normal gradual pulse. The screen actually turns off but the hard drive never stops running. Many times i don't realize this has happened until hours later when i actually come back to my computer and it is just in that same state. When i come back to the computer it is also very hot. When i try and open the display to get back on my computer, however, nothing happens at all. its almost like it just freezes while trying to sleep. The only thing i can do at this point to get it out of this state is to hold the the power button in and restart the computer. I should note that this problem occurs probably every 1:15 times i put my computer to sleep. Any help concerning this problem would be most appreciated. Thanks again!!!

My MBP does this on occasion as well.
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You should also ask this in the MacBook Pro forum. This is the forum for the 13” white and black plastic MacBooks that were discontinued in 2010. You should also post this question there to increase your chances of getting an answer.
https://discussions.apple.com/community/notebooks/macbook_pro

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Hi all,
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- Screen lights up gray with dark gray Apple logo in center
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This goes on for about a minute or so and never advance to beyond to blue screen, login window, etc., the screen just goes black and shuts down after that. I since tried powering it up about a dozen times and the same sequence of events happen with no complete start up.
Battery is fully charged and 110VAC power supply is plugged in.
Anyone have any ideas that might help? Please let me know if I didn't provide enough info.
Thanks in advance.
Mac

You'll have to do the following if possible:
How to Perform an Archive and Install
An Archive and Install will NOT erase your hard drive, but you must have sufficient free space for a second OS X installation which could be from 3-9 GBs depending upon the version of OS X and selected installation options. The free space requirement is over and above normal free space requirements which should be at least 6-10 GBs. Read all the linked references carefully before proceeding.
1. Be sure to use Disk Utility first to repair the disk before performing the Archive and Install.
Repairing the Hard Drive and Permissions
Boot from your OS X Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Installer menu (Utilities menu for Tiger.) After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported, then quit DU and return to the installer.
2. Do not proceed with an Archive and Install if DU reports errors it cannot fix. In that case use Disk Warrior and/or TechTool Pro to repair the hard drive. If neither can repair the drive, then you will have to erase the drive and reinstall from scratch.
3. Boot from your OS X Installer disc. After the installer loads select your language and click on the Continue button. When you reach the screen to select a destination drive click once on the destination drive then click on the Option button. Select the Archive and Install option. You have an option to preserve users and network preferences. Only select this option if you are sure you have no corrupted files in your user accounts. Otherwise leave this option unchecked. Click on the OK button and continue with the OS X Installation.
4. Upon completion of the Archive and Install you will have a Previous System Folder in the root directory. You should retain the PSF until you are sure you do not need to manually transfer any items from the PSF to your newly installed system.
5. After moving any items you want to keep from the PSF you should delete it. You can back it up if you prefer, but you must delete it from the hard drive.
6. You can now download a Combo Updater directly from Apple's download site to update your new system to the desired version as well as install any security or other updates. You can also do this using Software Update.

2012 MacBook pro will not power up sleep light on then off

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