TS3824 Computer starts up to white screen

My iMac starts up to a white screen and stays that way and won't start.

Hold Shift key upon boot, if you get in copy your users folder to a extenral drive as soon as possible and disconnect, do not use TimeMachine you can set that up later.
https://discussions.apple.com/docs/DOC-3046
https://discussions.apple.com/community/notebooks/macbook_pro?view=documents

Similar Messages

  • Just tried setting up bootcamp on MacPro. Computer now boots to white screen before going to black screen with curser in upper left corner. Can anyone get me back to Mac operating system so I can start over again?

    Just tried setting up bootcamp on 2014 MacPro 13" laptop. Computer now boots to white screen before going to black screen with curser in upper left corner. Can anyone get me back to Mac operating system so I can start over again?

    Hi there rjr25350,
    You may find the information in the article below helpful.
    Boot Camp: Windows installation boots to black screen with blinking cursor
    http://support.apple.com/kb/TS4536
    -Griff W. 

  • Nokia N70 starts with a white Screen.

    Hi all,
    My nokia N70 starts with a white Screen and does not go any further. It does not make any sound while starting. When i connect it to the PC it is not detected by the PC while the phone is on showing a white screen. I have tried performing a Hard reset using the *3 and the green key but it is not formatting either. I also tried updating the software but as the PC is not recognising the mobile connection the updater is not working either. I am using the latest PC suite.
    Please help...

    Remove the battery for at least 5 minutes and then replace and see if that makes any difference. Also try removing the memory card.
    If the above two don't work then try these.Always remember to backup your phone before performing resets as your data may be lost.
    First try these
    *#7780# - Restore factory settings - resets all the settings to the default 
    *#7370# - Reformat your phone
    If still not working
    Then try the "3 finger deep reset". With the phone powered off, depress and hold these three keys simultaneously "*" "3" "green phone" and then power on phone using the on/off button whilst keeping the three keys depressed until you hear start-up tone.
    This should ONLY be done if the device doesn't power up normally anymore and it wipes everything in the Phone memory that is not part of the ROM.

  • My imac starts with a white screen, then goes black and a small white line just blinks in the top left corner of the screen?

    My imac starts with a white screen, then goes to black with a small white line blinking in the top left corner of the screen. Any ideas? Thanks.

    Try starting your iMac with the original DVD that came with the machine then launch disk utility to repair your hard drive. 

  • HT5654 my iphone 5 fell did not break but went completely black and non responsive. When I plug it to the computer I get a white screen with black apple. When I push both the Top and Homne buttons simultaneously I get the charger picture plug end plus arr

    my i phone 5 was dropped, didn't break but went completerly black screen and nonresponsive. I pushed both the home button and top button no response. I plugged it to the computer it gave me white screen with black apple. I pushed the home and the top went black then gave the itune and the charging plug picture. I tried to download and update, the message came as couldn't restore due to unknow error. Any help??

    Try:
    - iOS: Not responding or does not turn on
    - Also try DFU mode after try recovery mode
    How to put iPod touch / iPhone into DFU mode « Karthik's scribblings
    - If not successful and you can't fully turn the iOS device fully off, let the battery fully drain. After charging for an least an hour try the above again.
    - Try on another computer
    - If still not successful that usually indicates a hardware problem and an appointment at the Genius Bar of an Apple store is in order.
    Apple Retail Store - Genius Bar       

  • Start up remains white screen

    During start-up, only white screen with Apple logo...what's happening??!

    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 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.”
    b. 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.
    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
    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 either of the techniques in Steps 1b and 1c 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 you use a wireless keyboard, trackpad, or mouse, replace or recharge the batteries. The battery level shown in the Bluetooth menu item may not be accurate.
    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, or if a firmware password is set, or if the startup volume is a Fusion Drive or 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 10. 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
    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 10
    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 11
    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 12
    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.

  • I have a mid-2011 iMac running Mavericks. When I click restart the computer goes to a white screen with a spinning circle and does not go any further until I hold down the power button to turn it off. What do I do?

    I have a mid-2011 iMac running Mavericks. When I click restart the computer goes to a white screen with a spinning circle and does not go any further until I hold down the power button to turn it off. What do I do?

    Ok, sounds like the safe mode boot worked... You probably don't want to always be in safe mode though (some reduced functionality) so does it do a normal boot now? If not, you should then reboot into safe mode and run Disk Utility. Then select Macintosh HD on the left hand side, and click the Verify Disk button. If needed, it will ask you to Repair Disk. If there are errors found, Repair Disk again until there are none. Then try another normal boot and reply with result, wether good or bad.

  • My macbook is not starting properly, remains white screen as it is with apple logo and spinning gear

    my macbook is not starting properly, remains white screen as it is with apple logo and spinning gear

    Hi..
    Your profile indicates you are running Lion v10.7 so you need to use Lion Recovery  to repair the startup disk if necessary or reinstall Mac OS X.

  • HT4650 My computer turns to a white screen. In the center it blinks a suitcase with a question mark in the center. I can not access my desktop. Is this a malware virus?

    My computer turns to a white screen. In the center it blinks a suitcase with a question mark in the center. I can not access my desktop. Is this a malware virus?

    Hi, likely neither.
    What shows for boot choices if you hold alt or option key on startup?
    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.

  • HT1338 If there is no sound/music playing, computer starts to make white noise. After sound/music starts, computer pops speakers/headphones. How can I fix this?

    If there is no sound/music playing, computer starts to make white noise (unless muted). After sound/music starts, computer pops speakers/headphones (white noise stops). How can I fix this?

    Hello Stacey,
    What all devices do you have connected?
    It sounds like a Ground loop... voltage leaking somewhere.

  • Macbook Air starts with a white screen and permanent "poing"-sound...

    Macbook Air starts with a white screen and permanent "poing"-sound...
    Tried SMU, PRAM, MMU resets, but nothing helps...
    Thank you for your support.

    You need to take it in for service, it may be a stuck key or component failure.

  • 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.

  • Will not start - get a white screen and  gray folder with ?

    I tried to erase the drive and reinstall snow leopard - which got interupted. 
    Now when I try to start - I just get a white screen - sometimes with a folder and question mark in the middle of the screen.
    I tried rebooting with original OS disc - while holding option key - but it eventually kicks the disc out.
    thanks

    There are four general causes of this issue:
    1. The computer's PRAM no longer contains a valid startup disk setting when there aren't any problems with the disk itself. This can be checked for by pressing the Option key and seeing if the drive appears.
    2. The internal drive's directory structure has become damaged. This requires usage of an alternate bootable system to perform the repair.
    3. Critical system files have been deleted. This requires usage of an alternate bootable system to reinstall them.
    4. The internal drive has died or become unplugged. This is the most likely case if the computer took a sharp impact or there are unusual sounds coming from its location.
    (91991)

  • Start up problem, white screen. Can you help?

    Hello, this problem starts with a freeze up normally waking from sleep mode. Hard restart get fan noise,start up noise, white/gray screen with/out the apple or wheel and that is as far as it gets. Once in a while (like 2 in 4 days) it will boot completely. I have run disk utility 3 times, with it finding and fixing errors twice and none once. I have reset pram, I have tried booting booting from disc (holding c down while starting up) with no change. I have reset the sm by leaving the thing unplugged over night. I am in a small town with out a apple store and only one service center with a huge backlog! can anyone help? Oh and I have reinstalled osx and restored from timemachine 3 times and this still happens:-(

    Thanks, I failed to write down the errors, but i do recall them coming up while checking the catalog hierarchy...not much help I know. Thanks for the system test tip, but fond no problem. would the power supply cause the top of the computer to heat up? I just noticed it seems to be hot. I have put a fan blowing on it, to help for now. Keep in mind that I could have just never noticed this before! Here is my last question, I have always purchased apple care, a search shows nothing registered for this computer. I moved about 6 months ago and have no clue where the box with my apple care would be. I can not find my purchase receipt. I recall the apple store emailing it to me, but alas, I cannot find it. Do they keep records of these things? Thank you again for all of your help!

  • HP Pavilion dv7 Notebook starting with Blank White Screen--He​lp??

    I've had an HP Pavilion dv7 Notebook for a couple years now. Today I go to start it up (without the power cord plugged in), and a completely white screen appears. I'm thinking, maybe it's still starting up/working some kinks out. Then I hear the Windows 7 twinkling start up sound that usually happens when you get to your log in screen. So it seems the computer itself is working, but there is zero display on the screen. If anyone has any good advice/experience with this/knows how I can fix it or what I should do, PLEASE let me know! Computer problems are so distressing

    I had this problem with my father's pavillion.
    There was a broken pin in the screen socket on the motherboard so I guess it was always making poor contact until one day this pin must have broken off completely and the screen would only display completely white.
    I inserted a fine solid wire (not multi-strand) into the plug at the right point so that it only just stuck out enough to make contact with what was left of the pin in the socket, whilst being fully inserted into the plug.
    I then taped the plug/socket together to make sure it didn't loose contact by coming loose.
    Seems to have solve the problem in the short term (but the socket should need replacing for a long-term fix).

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