My iMacs screen is completely white with no Apple logo

My iMac chimes but it stays on a complete white screen with a yellow tinge at the bottom that fades about half way, please I have tried all the key strokes but nothing happened

Could be many things, we should start with this...
"Try Disk Utility
1. Insert the Mac OS X Install disc, then restart the computer while holding the C key.
2. When your computer finishes starting up from the disc, choose Disk Utility from the Installer menu at top of the screen. (In Mac OS X 10.4 or later, you must select your language first.)
*Important: Do not click Continue in the first screen of the Installer. If you do, you must restart from the disc again to access Disk Utility.*
3. Click the First Aid tab.
4. Select your Mac OS X volume.
5. Click Repair Disk, (not Repair Permissions). Disk Utility checks and repairs the disk."
http://docs.info.apple.com/article.html?artnum=106214
Then try a Safe Boot, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, reboot when it completes.
(Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive.)
If perchance you can't find your install Disc, at least try it from the Safe Boot part onward.

Similar Messages

  • When I started my Mac the screen was white with the Apple logo and power motion icon running.  I attempted to turn off Mac then a message stating "Debugger called:  Button SCI . Also "Waiting for remote debugger connection."  What is my next step?

    When I started my Mac the screen was white with the Apple logo and power motion icon running.  I attempted to turn off Mac then a message stating "Debugger called:  <Button SCI>. Also "Waiting for remote debugger connection."  What is my next step?

    Hi , and a warm welcome to the forums!
    Could be many things, we should start with this...
    "Try Disk Utility
    1. Insert the Mac OS X Install disc, then restart the computer while holding the C key.
    2. When your computer finishes starting up from the disc, choose Disk Utility from the Installer menu at top of the screen. (In Mac OS X 10.4 or later, you must select your language first.)
    *Important: Do not click Continue in the first screen of the Installer. If you do, you must restart from the disc again to access Disk Utility.*
    3. Click the First Aid tab.
    4. Select your Mac OS X volume.
    5. Click Repair Disk, (not Repair Permissions). Disk Utility checks and repairs the disk."
    http://docs.info.apple.com/article.html?artnum=106214
    Then try a Safe Boot, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, reboot when it completes.
    (Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive.)
    If perchance you can't find your install Disc, at least try it from the Safe Boot part onward.
    If 10.7.0 or later...
    Bootup holding CMD+r, or the Option/alt key to boot from the Restore partition & use Disk Utility from there to Repair the Disk, then Repair Permissions.
    And sorry to report that OSX is more Widows like than ever, but….
    If that doesn't help Reinstall the OS.

  • My iPhone will only operate when connected to the PC, 2 minutes max after I disconnect it, the screen reverts to black with the apple logo and then completely black.  Restoring makes no difference; any ideas anyone? en

    my iPhone fell on the floor yesterday;  now it will ony operate when connected to the PC - then it works fine.  If I disconnect it from the PC, the screen reverts to black with the apple logo, eventually completely black;  iPhone is unresponsive until reconnected to PC.  Any ideas anyone?

    You broke it.
    It's time to find yourself a competent 3rd party repair shop or just buy a new phone. I believe you can get an out of warranty replacement from Apple for $149 (not absolutely positive they still offer them for the 3G), but given the age of the phone and the cost, a new one might make more sense.

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    I was trying to update my Ipad to IOS 8, the screen is all black with the apple logo on it and the progress bar is stuck.
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  • My macbook screen was black after waking from sleep, I took out the battery and now the screen stays frozen white with the apple and loading bar

    Ant ideas what might be wrong, or how to fix it?
    Thanks!

    jellybell wrote:
    Ant ideas what might be wrong, or how to fix it?
    Thanks!
    Your caches may be corrupted. Try a Safe Boot by pressing the Shift key. You should see a progress bar. It's important to let this Safe Boot run its course without interruption; otherwise, you can trash the file system badly enough to require a restore from backup. (Been there, done that. Lesson learned!)

  • The screen on my Mac is white with the apple icon and the spinning timer and won't boot up

    The screening on my Mac is white with the apple logo and a spinning timer and won't boot up

    Take a look here to see if any of the suggestions help:
    http://support.apple.com/kb/TS2570

  • I am going to sell my second generation ipod touch, so i resetted it to factory defaults. It said it would take up to an hour, and i patiently waited. But when the black and white loading bar completed, the ipod went to the black screen with an apple logo

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    Try:
    - iOS: Not responding or does not turn on
    - If not successful and you can't fully turn the iPod fully off, let the battery fully drain. After charging for an least an hour try the above again.
    - If still not successful that indicates a hardware problem and an appointment at the Genius Bar of an Apple store is in order.

  • My imac won't boot up.  I get a white screen with the apple logo and the spinning  spiral--any ideas?

    my imac won't boot up.  I get a white screen with the apple logo and the spinning  spiral--any ideas?
    I have started having trouble since i had to upgrade OS the latest in July 12.

    http://support.apple.com/kb/TS2570    Follow this article and when it gets to the part where you go into disk utility using your install disc, you'll actually boot up holding down Command and R

  • I Mac freeze: When powered on all I get is a blank white screen with the apple logo. No "beach ball" nothing more. Tried all the usual restarts. Help?

    I Mac freeze: When powered on all I get is a blank white screen with the apple logo. No "beach ball" nothing more. Tried all the usual restarts. Help?

    Tried all the usual restarts. Help?
    Care to share?
    Please detail ALL you have done so far in the way of troubleshooting?   Need this info to avoid the been there done that scenarios.
    ===========
    Your profile is a complete blank!!!!
    When posting in Apple Communties/Forums/Message Boards.......It would help us to know which Mac model you have, which OS & version you're using, how much RAM, etc. You can have this info displayed on the bottom of every post by completing your system profile and filling in the information asked for.
    CLICKY CLICK-----> Help us to help you on these forums
    ***This will help in providing you with the proper and/or correct solutions.***

  • My iPad wont turn on, its black screen then i press home power buttons together and white screen with black apple logo come out after 5 seconds black "lighten" screen comes out and its stuck just like that! Whats the problem?

    HI
    this happened today suddenly while i was working on my iPad it kicked my out of the app that i was using then white screen with black apple logo came out, i thought it was an ordinary thing cause this happens all the time with me, but this time it refused to turn on! After the white screen with the black logo vanished i wad waiting for my lock screen but no, a black screen showed up just like that! And could tell it was black "lighten" screen i tried more than 10 times to do the home+power thing but it wont work, whats wrong with my ipad!

    If the battery is completely drained it may take some time while on the charger before the iPad responds. Plug the iPad into the charger that came with it and plug that into a good wall outlet. Wait one hour. Then reset your device. Press and hold the Home and Sleep buttons simultaneously until the Apple logo appears. Let go of the buttons and let the device restart. If the iPad restarts let it continue to charge until the battery is 100%. If it doesn't start up make an appointment at an Apple Store to have your device examined by a technician. Or contact Apple Support. They will examine your iPad and explain your options.

  • HT3964 I am not able to reboot my Mac desktop. When I switch on the Mac, I get a white screen with the Apple logo and the little wheel below that goes round and round but the computer refuses to boot.

    Hi, I am not able to reboot my Mac desktop.
    When I switch on the Mac, I get a white screen with the Apple logo and the little rotating circle.
    The system refuses to boot.
    What can I do?
    Marcus

    We need to get you moved. This forum is for mini-tower Macs built between 1998 and 2005 and doesn;t get as much traffic ("eyeballs on the problem") as the forums for newer Macs.
    Please do "About this Mac" from you Apple menu and tell us what that says for "processor" and Mac OS version. Looks like this:
    or this for later Mac OS versions:
    With that we can figure out which of the two iMac forums you need and get the Hosts to move your post.

  • I start my mac book pro and the screen goes white with an apple in the middle

    I start my mac book pro and the screen goes white with an apple in the middle. Starts like charging  but then it turns
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    Reinstall Snow Leopard without erasing the drive
    1. Repair the Hard Drive and Permissions
    Boot from your Snow Leopard 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 Utilities menu. 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 click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer.
    If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
    2. Reinstall Snow Leopard
    If the drive is OK then quit DU and return to the installer.  Proceed with reinstalling OS X.  Note that the Snow Leopard installer will not erase your drive or disturb your files.  After installing a fresh copy of OS X the installer will move your Home folder, third-party applications, support items, and network preferences into the newly installed system.
    Download and install Mac OS X 10.6.8 Update Combo v1.1.
    Reinstalling Lion/Mountain Lion Without Erasing the Drive
    Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
    Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
    When the recovery menu appears select Disk Utility. 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 click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu.
    Reinstall Lion/Mountain Lion: Select Reinstall Lion/Mountain Lion and click on the Continue button.
    Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.

  • Was just scrolling through my apps when the screen suddenly froze. A force shutdown didn't work and when I pressed the silent on/off button, there was no vibration either. The frozen screen faded to white with a few lines and about 10 minutes later, the

    I was just scrolling through my apps when the screen suddenly froze. A force shutdown didn't work and when I pressed the silent on/off button, there was no vibration either. The frozen screen faded to white with a few lines and about 10 minutes later, the edges started to turn black, forming a ring which got larger till about 4 hours later, the screen turned completely black. I tried connecting to iTunes but it wasn't detecting the phone and I can't do anything with it now... When it turned completely black, I charged it and after a while, the low batt screen came on but it was fuzzy and flickering with the white ring... What to do know ???????

    Restart your computer while holding down left mouse key. That will eject the CD and your Mac will start as normal.
    Lupunus

  • My MacBook Air will not turn on. I get a white screen with the apple logo and a spinning star that just does that for hours

    My MacBook Air will not turn on. I get a white screen with the apple logo and a spinning star (search icon). It will spin for hours and never go away unless I power off.

    Take each of these steps that you haven't already tried. Stop when the problem is resolved.
    To restart an unresponsive computer, press and hold the power button for a few seconds until the power shuts off, then release, wait a few more seconds, and press it again briefly.
    Step 1
    The first step in dealing with a startup failure is to secure the 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 the last backup, you can skip this step.
    There are several ways to back up a Mac that is unable to start. You need an external hard drive to hold the backup data.
    a. Start up from 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.” The article refers to starting up from a DVD, but the procedure in Recovery mode is the same. You don't need a DVD if you're running OS X 10.7 or later.
    b. If Step 1a fails because of disk errors, and no other Mac is available, then you may be able to salvage some of your files by copying them in the Finder. If you already have an external drive with OS X installed, start up from it. Otherwise, if you have Internet access, follow the instructions on this page to prepare the external drive and install OS X on it. You'll use the Recovery installer, rather than downloading it from the App Store.
    c. If you have access to a working Mac, and both it and the non-working Mac have FireWire or Thunderbolt ports, start 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.
    d. 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
    If the startup process stops at a blank gray screen with no Apple logo or spinning "daisy wheel," then the startup volume may be full. If you had previously seen warnings of low disk space, this is almost certainly the case. You might be able to start up in safe mode even though you can't start up normally. Otherwise, start up from an external drive, or else use the technique in Step 1b, 1c, or 1d to mount the internal drive and delete some files. According to Apple documentation, you need at least 9 GB of available space on the startup volume (as shown in the Finder Info window) for normal operation.
    Step 3
    Sometimes a startup failure can be resolved by resetting the NVRAM.
    Step 4
    If a desktop Mac hangs at a plain gray screen with a movable cursor, the keyboard may not be recognized. Press and hold the button on the side of an Apple wireless keyboard to make it discoverable. If need be, replace or recharge the batteries. If you're using a USB keyboard connected to a hub, connect it to a built-in port.
    Step 5
    If there's a built-in optical drive, a disc may be stuck in it. Follow these instructions to eject it.
    Step 6
    Press and hold the power button until the power shuts off. Disconnect all wired peripherals except those needed to start up, and remove all aftermarket expansion cards. Use a different keyboard and/or mouse, if those devices are wired. If you can start up 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.
    Step 7
    If you've started from an external storage device, make sure that the internal startup volume is selected in the Startup Disk pane of System Preferences.
    Start up in safe mode. Note: If FileVault is enabled in OS X 10.9 or earlier, or if a firmware password is set, or if the startup volume is a software RAID, you can’t do this. Post for further instructions.
    Safe mode is much slower to start 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 the login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
    When you start up 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, the startup volume is corrupt and the drive is probably malfunctioning. In that case, go to Step 11. If you ever have another problem with the drive, replace it immediately.
    If you can start and log in in safe mode, empty the Trash, and then open the Finder Info window on the startup 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 restart as usual (i.e., not in safe mode.)
    If the startup process hangs again, the problem is likely caused by a third-party system modification that you installed. Post for further instructions.
    Step 8
    Launch Disk Utility in Recovery mode (see Step 1.) Select the 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 restart as usual.
    Step 9
    If the startup device is an aftermarket SSD, it may need a firmware update and/or a forced "garbage collection." Instructions for doing this with a Crucial-branded SSD were posted here. Some of those instructions may apply to other brands of SSD, but you should check with the vendor's tech support.  
    Step 10
    Reinstall the OS. If the Mac was upgraded from an older version of OS X, you’ll need the Apple ID and password you used to upgrade.
    Step 11
    Do as in Step 9, but this time erase the startup volume in Disk Utility before installing. The system should automatically restart into the Setup Assistant. Follow the prompts to transfer the data from a Time Machine or other backup.
    Step 12
    This step applies only to models that have a logic-board ("PRAM") battery: all Mac Pro's and some others (not current models.) Both desktop and portable Macs used to have such a battery. The logic-board battery, if there is one, is separate from the main battery of a portable. A dead logic-board battery can cause a startup failure. Typically the failure will be preceded by loss of the settings for the startup disk and system clock. See the user manual for replacement instructions. You may have to take the machine to a service provider to have the battery replaced.
    Step 13
    If you get this far, you're probably dealing with a hardware fault. Make a "Genius" appointment at an Apple Store, or go to another authorized service provider.

  • Start up with a white screen with an apple logo keep on spinning

    my imac 10.5.4 version won't start up it has white screen with apple logo and keep on spinning it's been 2 weeks now try to fixed it i tried everything no luck im trying the verbose what i see on the screen is that diskOs2:0xe0030005 (UNDEFINED) please help me !!!!

    Hi Haziq0135,
    Welcome to Apple Support Communities.
    It sounds like your MacBook Pro is starting up to a gray screen with a Apple logo and a spinning gear. The article linked below provides a lot of great troubleshooting suggestions that should resolve issues like that.
    Mac OS X: Gray screen appears during startup
    http://support.apple.com/kb/TS2570
    I hope this helps.
    -Jason

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