My iMac will not turn on, the screen stays black, makes a whistling sound 3 short, 3 long, 3 short, well maintained while keeping on, what solution do you have?

My iMac will not turn on, the screen stays black, makes a whistling sound 3 short, 3 long, 3 short, well maintained while keeping on, what solution do you have?

For some reason its firmware seems to have been corrupted. Read:
About the Firmware Restoration CD (Intel-based Macs)
iMac (Mid 2007) and later models: About startup tones

Similar Messages

  • My iPod touch will not turn on the screen is black?

    My iPod touch will not turn on the screen is black?

    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 another cable       
    - 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                              

  • Have a MacBook Pro. the computer will not boot up, the screen has black and white stripes and multi color bands as well.

    Have a MacBookPro. The computer will not boot up. the screen has black and white bands with multi color bands as well.

    Yeah it's dead. Take it to an Apple Genius Bar and have it checked out. Then buy a new one.

  • My iPhone will not turn on, the screen is completely black. It will vibrate while plugged into a charger, but that is it. I have no idea what to do.

    I have no idea what to do please help me!

    Source: http://support.apple.com/kb/ts2802
    Will not turn on, will not turn on unless connected to power, or unexpected power off
    Verify that the Sleep/Wake button functions. If it does not function, inspect it for signs of damage. If the button is damaged or is not functioning when pressed, seek service.
    Check if a Liquid Contact Indicator (LCI) is activated or there are signs of corrosion. Learn about LCIsand corrosion.
    Connect the iPhone to the iPhone's USB power adapter and let it charge for at least ten minutes.
    After at least 30 minutes, if:
    The home screen appears: The iPhone should be working. Update to the latest version of iOS if necessary. Continue charging it until it is completely charged and you see this battery icon in the upper-right corner of the screen. Then unplug the phone from power. If it immediately turns off, seek service.
    The low-battery image appears, even after the phone has charged for at least 20 minutes: See "iPhone displays the low-battery image and is unresponsive" symptom in this article.
    Something other than the Home screen or Low Battery image appears, continue with this article for further troubleshooting steps.
    If the iPhone did not turn on, reset it while connected to the iPhone USB power adapter.
    If the display turns on, go to step 4.
    If the display remains black, go to next step.
    Connect the iPhone to a computer and open iTunes. If iTunes recognizes the iPhone and indicates that it is in recovery mode, attempt to restore the iPhone. If the iPhone doesn't appear in iTunes or if you have difficulties in restoring the iPhone, see this article for further assistance.
    If restoring the iPhone resolved the issue, go to step 4. If restoring the iPhone did not solve the issue, seek service.
    Locate a Service location: https://locate.apple.com (choose your country in the top right)
    Call Apple for Mail-in Service (if available): http://support.apple.com/kb/he57
    Set up service on your own or check options: https://selfsolve.apple.com
    Questions about service and potential costs: http://www.apple.com/support/service/ (Choose your country after selecting your product)

  • My macbook pro will not load. The screen stays stuck at the apple loading signal.

    I tried booting it up in safe mode, but a loading bar appears on the bottom, starts to fill, and dissapears again, leaving just the apple and the spinner.

    What backups do you have?

  • TS3274 my ipad will not turn on  The screen is a lighter shade of blue???? HELP!

    my ipad will not come on  Its a lighter shade of blue.  I tried holding down the two buttons and it still doesn't work.  HELP!

    Did you hold down on the sleep and home buttons at the same time for at least 10-15 seconds? Sometimes it can take a few attempts to get it to work.
    But the blue screen that you are describing doesn't sound good. Were you doing anything out of the ordinary when the screen turned blue like did you bang the iPad or drop it....drop something on it?

  • Firefox will not launch. The screen goes black for several seconds, then returns to the launcher drawer.

    Installed Fennec 4.0b2 on my Acer Liquid running Android 2.2. When I tried to launch application, the screen goes to black, with a grey bar at the top with the word "firefox" within. This screen persists for several seconds, before the returning to the previous screen.

    Thanks for the report. This is a known bug that only affects Acer Liquid phones. We're working on it, but we don't have a fix ready yet. For details, see https://bugzilla.mozilla.org/show_bug.cgi?id=606194

  • Ipad will not turn on the screen is just black, using the hone and power buttom together does not fix it

    my ipad screen is blue, using the home and power buttons together do not fix it.

    If you can't reset it by holding the power and home buttons at the same time until you see the Apple logo, then releasing, connect it to your charger for at least 15 minutes then try resetting it again  If it won't reset make an appointment with the Genius bar at a nearby Apple store to have it looked at.

  • HT2173 my iMac will not get past the start screen, after i restarted it after it not being able to upload my photos from my iPhone 4S to iPhoto  app on my iMac bc a visa vas about 3:15 min

    my iMac will not get past the start screen, after i restarted it after it not being able to upload my photos from my iPhone 4S to iPhoto  app on my iMac bc a visa vas about 3:15 min.  What should I do to get my imac past this?

    According to your posted Profile here you are running a PPC based iMac.  This Forum is only for "Intel iMac's", and so to get the expert and correct help you need you should repost your question in the "PPC iMac Forum".
    Hope this helps

  • HT201210 iPhone 4s will not turn on, a screen shows up telling me to connect to iTunes to restore and update to iOs7, but when I try to restore error 2001 comes up and will not let me restore. I still cannot turn my phone on. None of the troubleshooting t

    iPhone 4s will not turn on, a screen shows up telling me to connect to iTunes to restore and update to iOs7, but when I try to restore error 2001 comes up and will not let me restore. I still cannot turn my phone on. None of the troubleshooting tips work, help??

    Error 20, 21, 23, 26, 28, 29, 34, 36, 37, 40
    These errors typically occur when security software interferes with the restore and update process.
    FollowTroubleshooting security software issues to resolve this issue.
    In rare cases, these errors may be a hardware issue.
    If the errors persist on another computer, the device may need service.

  • G5 iMac Will Not Turn On - Power Supply Diagnosis?

    My A1145 20" iSight PPC G5 iMac will not turn on - it doesn't respond to the power button. It had been shut down for a few days, I turned on the power and it booted up as normal, the desktop appeared and I was about to open the web browser when it suddenly went dead; the screen immediately turned off with no warning or noise. There is no fan or disk noise coming from it when the power lead is plugged in, just a very, very faint electronic hum from inside.
    From reading various webpages, it seems possible that the power supply could have failed. Is there a simple way that I can diagnose this before deciding whether to attempt to replace it myself or not? I understand that there should be some diagnostic LEDs which could help identify a problem - I've removed the surround from the iMac and peeled back the black EMI film below the display but I'm not sure for what or where I should be looking (they seem to be easier to find on the 17" models).
    Whilst I know a repair might not be cost-effective on such an old machine, I have 220GB of photographs, documents and music on it - none of which is backed-up - so I am very keen to get it working and backed-up as soon as possible.
    Could anyone suggest how to diagnose the problem?

    Hi there:
    My experience with Macintosh computers has not included the G5 iMac even though I almost got one to replace a failed-under-AppleCare iMac G4 17" 1.25GHz after three/four major failures and no local support.
    ...So, I think you may be able to pull the hard disk drive out of that computer and see if an external enclosure could allow you access those files IF the drive spins up at all. Sometimes odd things happen, and the G5 iMac had some history of capacitor and other failures that could be a problem. I see there are a few free information guides here that may be helpful: http://www.ifixit.com/Device/iMac_G5
    If the battery on the logic board was dead, but the computer kept in running condition by leaving it plugged in, once the computer was left unplugged for a time then the device may fail to start. There is a way to reset the power management chip (different names for same idea as technology moved forward) and that could help in the process of troubleshooting most power related issues in the PPC Macs of later G3/G4/G5 design.
    There are troubleshooting items of interest in here http://www.apple.com/support/imac/g5/ ie: what to do when your computer won't turn on...
    Sorry to not be of direct help in this matter.
    Good luck & happy computing!

  • My imac will not turn over, what should I do

    my imac will not turn over, what should I do

    Just FYI,
    You are not addressing Apple here.
    People here who help troubleshoot and attempt to correctly answer technical questions in these Apple Support Communities are Apple users just like yourself.
    There are two initial things you can try.
    An NVRAM reset.
    Shut down your Mac.
    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 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.
    After resetting NVRAM or PRAM, you may need to reconfigure your settings for speaker volume, screen resolution, startup disk selection, and time zone information. The logic board battery helps retain NVRAM/PRAM settings when your computer is shut down.
    IF this fails to help reboot your iMac, you could try an SMC reset.
    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.
    Check back if neither one of these solves your iMac's issues.

  • Intel iMac will not boot past gray screen

    Intel iMac will not boot past gray screen
    my system:
    new (month old) 24" intel imac, 2.8 ghz, 4 gb ram.
    running: leopard (upgraded from tiger, which was pre-installed at purchase), installed 10.5.1 update right before this huge problem occurred.
    install discs on-hand: two-disc tiget set, single leopard upgrade disc.
    what led to this:
    i wanted to install windows using bootcamp on a 50 gb partition.
    at this point i was running leopard 10.5
    i followed all bootcamp instructions, printing out the guide, as well. once i got into the windows setup, i was prompted to choose a partition to install windows. unlike the bootcamp guide, which showed three partitions, one clearly labeled "bootcamp", i saw only one partition. not wanting to risk writing over my mac partition, i quit the setup and rebooted the mac os. after some googling around, i looked for firmware updates (didn't need any), and then software updates. i decided to try updating to 10.5.1.
    i then ran through boot camp again, deleting my previous windows partition, creating a new one, and moving forward as before. once again, i was only shown one partition to choose from in the windows setup. i exited the setup again to reboot through the mac os, but this time, i was only given a blank gray screen.
    here's what i have tried so far:
    booting from a CD, holding down the C or D keys: no response (in fact, i have to restart the computer holding down the mouse button to be able to eject the CD)
    booting with option key held down: gray screen
    booting with option key held down with external bootable firewire drive attached: the firewire drive appears as a boot icon, and i can click on it within a five second window, but then the screen freezes after that time period, and nothing changes
    booting into target mode while attached to another mac: gray screen (no firewire icon, and drive never shows up on other mac)
    resetting NVRAM: i'm able to hear the boot chimes, but no difference in performance. gray screen every time
    Safe boot: nothing but a gray screen
    Verbose mode: gray screen
    Single user mode: gray screen
    Single user mode with firewire drive attached: occasionally (not every time), i am able to get the white on black terminal to show up. from here, i'm able to run fsck, but it appears to only be checking the firewire drive. i have tried several times to boot from here, and once it took me to a blue screen with movable arrow cursor, but it never went beyond this.
    is there anything else left to try before taking it to apple?
    any help would be greatly appreciated.
    thanks,
    Casey Burns
    Casey Burns Illustration and Design
    http://CaseyBurns.com

    I'd call Apple support at this point. You'll need
    to put this issue on the record.
    Call U.S. iPod and Mac technical support: 1-800-APL-CARE (1-800-275-2273)
    The wait may be long for an agent to come on the line
    so expect that and have some other stuff to do in the meantime.
    If you have the applecare protection plan, I'd ask about "onsite"
    service.
    I like your work ! Good luck !
    Slim
    Message was edited by: slimpikkunz

  • My 5yr old iMac will not connect to the Internet. All other computers in the house will, including my Mac pro and iPad. What should I do?

    My 5yr old iMac will not connect to the Internet. All other computers at home will, including my Mac Pro and iPad. I'm at my wits end. What should I do?

    Which OS are you using (update your user profile).Try a
    SMC RESET
    http://support.apple.com/kb/HT3964
    Shut down the computer.
    Unplug the computer's power cord and ALL peripherals.
    Wait 15 seconds.
    Attach the computers power cable.
    Wait another 5 seconds and press the power button to turn on the computer.
    The 5 second timing is important to a successful reset.

  • Imac will not turn back on after being unplugged. Is there something I can do?

    imac will not turn back on after being unplugged. Is there something I can do?

    SMC RESET
    http://support.apple.com/kb/HT3964
    Shut down the computer.
    Unplug the computer's power cord and ALL peripherals.
    Wait 15 seconds.
    Attach the computers power cable.
    Wait another 5 seconds and press the power button to turn on the computer.
    The 5 second timing is important to a successful reset.

Maybe you are looking for

  • ABAP Dump After EHP4 Upgrade "SYNTAX_ERROR"

    Hello I performed ERP ECC 6.0 to EHP4 upgrade. System is working fine, Support Package stacks at maximum level, kernel, tp and R3trans is up-to-date. Only problem is I am getting "SYNTAX_ERROR" every minute. What could be the reason? Runtime Errors  

  • How do I set the page that a new tab opens to?

    When I open a new tab, the tab opens automatically to Bing or some search engine other than what I have set as my home page which is set to Google. How do I get a new tab to open to my homepage and not something else?

  • Off cycle- work bench

    hi, experts, please help me how to use off cycle workbench. i read the document but unable to understand. if possible please explain the same with an example. points assured. thanks and regards, madhu

  • Creating custom Column in IDT 4.1

    Hi All, I am using SAP IDT 4.1 SP03 to build a business layer over a SQL Server database using relational connection. I having a single table named CUSTOMER and it contains Customer ID, Customer Name,  City, SubscribeForEmail and date column. I want

  • HT4623 I did not find software update in my iPhone 4  !!!!

    Regarding    I did not find a software update in my iphon 4 ... Thanks' <Email Edited by Host>