When booting the screen remains grey

MMy screen remains grey after booting on my Mac air???  safe mode startup is not working either. Suggestions?

Maybe your Mac forgot what the startup disk is, so try a PRAM reset by holding down Command, Alt, P and R keys while your Mac is starting up.
If it does not work, hold the Alt key and it should give you all bootable partitions. If you see your OS X partition, choose it, and after starting up Mac OS X, go to System Preferences -> Startup Disk, and select the OS X partition.

Similar Messages

  • When booting the screen remains white with a flashing globe. What is this?

    I am a new Mac user and the last two days I have seen this happen when I boot. What is the computer doing?

    To fix it when the machine does boot navigate to System Preferences - Startup Disk and select the internal HD so it's highlighted then restart the machine.

  • My macbook pro screen remains grey after latest firmware update

    i just had the update notification for the latest firmware, proceeded to do so, and the screen remains grey, its been more than one hour and still grey, since its a firmware update i don't want to disturb it, but could it be that is taking so long?

    Reboot it by pressing the power button down hard to force a shutdown.
    If your still having problems, take it to Apple. I hope you have AppleCare becuase if they can't fix it, it's a new logicboard.

  • When i open my computer I get the white screen with apple symbol and there are vertical lines all over the screen with green pixels and after a few minutes the screen gets grey and I get message to restart my computer what happens

    3 years ago I bought an IMac Desktop that I am using for a lot of things but the most important for dvd montage in Imovies and Idvd.
    Now today when I opened my computer I get as usual the white screen with the Apple symbol but there were all over the screen vertical lines with green pixels and after a while the screen gets grey and I get message to restart my computer using the power button or the restart button and when I do so each time the same is happening somebody can tell me what is happening and what caused this. This computer is my work and now I have no income anymore.
    On the Apple support site they are asking to enter the serial number and when I do so I get message it is wrong but it is the only one I have and I buy this computer in Cairo Egypt. I am living in Hurghada in Egypt for the moment. When I call the technical support of the shop where I buy it they are telling me that it is the hard disk or ram and that I probably lost everything on it and they are asking a big amount to repair.
    Can somebody advise me on this matter. Thanks in advance

    You can find the serial number either in About this Mc in the Menu bar under the , or it should be on a sticker under the foot of the machine.
    If you have the install discs, try booting from them, holding down the c key and then using Disk Utility to check the drive. 
    You can also boot into Safe mode
    To start up into Safe Mode (to "Safe Boot"), do this:
       1. Be sure the computer is shut down.
       2. Press the power button.
       3. Immediately after you hear the startup tone, press and hold the Shift key.
          Tip: The Shift key should be held as soon as possible after the startup tone but not before.
       4. Release the Shift key when you see the gray Apple and progress indicator (looks like a spinning gear).
    During the startup in Mac OS X 10.2 through 10.3.9, you will see "Safe Boot" on the Mac OS X startup screen.
    During the startup in Mac OS X 10.4 or later, you will see "Safe Boot" on the login window, which appears even if you normally log in automatically.
    Please post back with results,
    To leave Safe Mode in any version of Mac OS X, restart the computer normally, without holding any keys during startup.

  • I cannot access the internet, I tried to answer that said to go to settings, safari, tap clear history, cookies and cache, cut off, then on, but it did not work.  When I go to internet the screen is grey??? please help I am a new user!!

    I cannot access the internet the screen is grey, I have tried by using the answer from someone but it does not work...I went to settings, tap safari, then clear the history, cookies, and cache, then turn off ipad.  When I did that twice, it did not work.  How long does it take for the clear history to work?  I am a brand new
    user of the ipad2 and I am disappointed that this is happening already.

    Have you been able to access the internet previously and now it's suddenly not working, or are you still trying to access the internet for the first time on your iPad?  Are you at home trying to connect through your home router?  If you are at home, did you put your home routers encryption code as your password?  The encryption code is what your iPad is looking for and it is usually found on the router and is typically a 13 digit combination of letters and numbers.  Let us know......

  • My computer suddenly refuse to start. When I turn it on it gives the startup sound but the screen is grey and after a while a little folder icon with a question mark inside turns up. It doesn't blink. What to do? Nothing happens if I try to start up from

    As I say my computer, a mac mini refuse to start. When I turn it on it gives the startup sound and the screen turns grey and stay that way for a long time. And in the end a small folder icon with a question mark inside (it doesn't blink) turns up in the middle of the screen.
    I have tried to start up from the installation CD holding down the C key on the keyboard. Same result. I have tried different key combinations while starting up. No result or rather same result. Nothing. Is the computer suddenly dead?
    I was about to buy a new computer but I need access to my data on this one (I write this on an iPad) but hven't yet found a way.
    Anybody have any good advice?
    I thought it was a software problem, that the computer couldn't find the startup software or something and maybe it is, but I am beginning to fear that it could be a hardware problem.

    You need to re install OSX. If you have the dmg file downloaded via torrentz this is how you can create a bootable external HD or Flash drive (8 GB+)
    https://discussions.apple.com/message/23957654#23957654
    Peace
    Harry

  • Itunes 10.5, windows 7 - 64bit, when I plug in itunes store, the screen remains blank. My AppleApplicationSupport are 2.1.5 - 2.0.1 - 1.4.1 - 1.1.0. Thanks

    itunes 10.5, windows 7 - 64bit, when I plug in itunes store, the screen remains blank. My AppleApplicationSupport are 2.1.5 - 2.0.1 - 1.4.1 - 1.1.0. Help Me please. Thanks

    tis works by mee
    In windows 7, click on your start menu, go to accessories, right click on the command prompt icon and choose "run as administrator".  Once it opens, type in the following command...
    netsh winsock reset
    hit enter and it should say something like winsock reset successful now reboot your computer.

  • When using my iMac the screen turned blue and so I turned the compute off. When I turn on again power does get to the computer but there are no chimes and the screen remains black. Any advise please. David

    When using my iMac the screen turned blue and so I turned the compute off. When I turn on again power does get to the computer but there are no chimes and the screen remains black. Any advise please. David

    Hello DJJOC,
    Thanks for using Apple Support Communities.
    To start troubleshooting this issue where your iMac's screen will not illuminate, please reset your SMC by following the information outlined below.
    Resetting the SMC for Mac Pro, Intel-based iMac, Intel-based Mac mini, or Intel-based Xserve
    Shut down the computer.
    Unplug the computer's power cord.
    Wait fifteen seconds.
    Attach the computer's power cord.
    Wait five seconds, then press the power button to turn on the computer.
    Note: For Intel-based Xserve computers that are not responding, you can shut down locally, or by using remote commands, or by pressing and holding the power button for five seconds.
    Intel-based Macs: Resetting the System Management Controller (SMC) - Apple Support
    Take care,
    Alex H.

  • When I try to download pdf files, the screen remains gray ... why?

    when I try to download pdf files, the screen remains gray ... why?

    Remove Adobe plug ins if any.
    Macintosh HD > Library > Internet Plug-ins
    AdobePDFViewNPAPI.plugin
    AdobePDFView.plugin

  • My iphone 4 fell in the toilet 4 days ago and it's been drying in rice since.  now when i plug it in, the screen remains black  but it will vibrate.  is this a good sign or is all hope lost for getting it to work again?

    My iphone 4 fell in the toilet 4 days ago and has been drying in rice ever since.  I tried plugging it in today and the screen remained black but it did vibrate when i switched it to vibrate.  Is that a good sign?  Or should I just give up hope already?

    well good sign or good sign maybe a strong word
    it mean that not all of the device have been damaged by the fluid
    but it does not really mean that the screen will ever work again
    when drying in rice make sure you don't
    1 conceal it so the vapor can't escape or it will not dry enough
    2 make sure to leave in on a heating source like a heated floor or radiator to speed up the proccess of the vaporising

  • My iphone died and when I plugged it back in to charge it when it powered on the screen remained black.  I can hear when I receive a text and a hear siri.  I have tried holding down the sleep and home button

    My iphone died & I plugged it back in to charge when it powered on the screen remained black.  I can hear when I receive a text and siri.  I have tried holding down the sleep and home button and restoring in itunes neither worked.  The screen on the phone is cracked but has been working fine until now.  Please help!!!

    Here's how to perform the restore:
    HT1414
    If you can actually get to restore, maybe (I estimate a 0.01% chance) you'll be able to do a backup before the restore.  Actually, from the symptoms you describe, I suspect a restore won't work either and you'll need to do a recovery.
    Just in case, if you need to recover (restore fails), here's how.  Note you may have to try to get into recovery mode more than once.
    http://support.apple.com/kb/HT1808

  • My touch pad does not work only when using Safari browser. The screen was grey. Help!

    My touch pad does not work only when I use Safari browser online. The screen was grey. No matter what I do, there is no reponse. Only the web address box works. What is this problem? I can use App Store and everything else fine.
    Someone please help.
    Thanks

    I would try:
    - Resetting the iPod:
    Reset iPod touch:  Press and hold the On/Off Sleep/Wake button and the Home
    button at the same time for at least ten seconds, until the Apple logo appears.
    - Go to Settings>Safari and delete cache, history and cookies.

  • I get "startup disk" when i start my computer, i enter, then...nothing, the screen is grey. What can I do?

    I Turn on my mac air 13" . I get : startup disk is full . I access the device, then the screen turns grey. What happened? what can I do?

    Go step by step and test.
    1. Start up in Safe Mode.
        http://support.apple.com/kb/PH11212
    2. Empty Trash.
       http://support.apple.com/kb/PH13806
    3. Disk space / Time Machine ?/ Local Snapshots
      Local backups
       http://support.apple.com/kb/ht4878
    4. Delete old iOS Devices Backup.
        iTunes > Preferences > Devices
        Highlight the old Backups , press “Delete Backup” and then “OK”.
        http://support.apple.com/kb/HT4946?viewlocale=en_US&locale=en_US
    5. Re-index Macintosh HD.
        This will take a while. Wait until it is finished.
        System Preferences > Spotlight > Privacy
        http://support.apple.com/kb/ht2409
    6.Try OmniDiskSweeper. This will give the storage size details of the items.
       https://www.omnigroup.com/more
       Select Macintosh HD and click  “Sweep Selected Drive” at the bottom.
       Delete the files you don’t want to keep.
       Be careful. Delete only the files that can be safely  deleted.

  • When I try to put on my MacBook Pro, the screen remains blank. What comes on is like showers. what do I do?

    hen I try to put on my MacBook Pro, the screen remains blank. What comes on is like showers. what do I do?

    Do just that. Connect it iTunes and restore it as it appears there is a software issue with the device.
    B-rock

  • What do ido if My iMac (intel) starts but the screen remains dark.

    What do ido if My iMac (intel) starts but the screen remains dark.

    Reset the SMC > Intel-based Macs: Resetting the System Management Controller (SMC)
    Shut down the computer.
    Unplug the computer's power cord.
    Wait fifteen seconds.
    Attach the computer's power cord.
    Wait five seconds, then press the power button to turn on the computer.
    Reset the PRAM > Resetting your Mac's PRAM and NVRAM
    Shut down the computer.
    Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.
    Turn on the computer.
    Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.
    Hold the keys down until the computer restarts and you hear the startup sound for the second time.
    Release the keys.
    Try booting into Safe Mode > Mac OS X: Starting up in Safe Mode
    Be sure your Mac is shut down.
    Press the power button.
    Immediately after you hear the startup tone, hold the Shift key. The Shift key should be held as soon as possible after the startup tone, but not before the tone.
    Release the Shift key when you see the gray Apple icon and the progress indicator (looks like a spinning gear).
    Or if you have installed new RAM, try reinstalling it or the iMac's original RAM making sure that the modules are fully seated in the slots.
    Then if it won't light, seek sercice from your Local Apple Authorized Service Provider or Apple Store. > Apple - Support - iMac - Service FAQ

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