My iMac (intel based early 2008) turns itself off after the gray apple logo and spinning wheel

The other day was using my mac normally. Later on I noticed a pixilated horizontal black stripe on the desktop screen so I restarted. The screen ended up stalling at the gray apple logo with the spinning gray wheel. After a minute or two the Mac just turned off and I can never get beyong this point after restarting a bunch of times. I tried plugging in the power cord at another outlet with same result. Boot up disc did give me option to reinstall Mac OS X but then I'd lose my data (which is stupidly not backed up). Is this a power issue, or something else?

Hello
try use apple hardware test if is possible , 2 ways to launch AHT ( depend on your mac and system version )
1- hold on just after start up sound "D" key on key bord
2- boot from AHT dvd com from your mac , hold on "D" key on keyboord
see if aht report any error
HTH
Pierre

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Macbook Pro (2011) froze while working, forced shut down, now won't turn on. Grey screen with apple logo and spinning wheel for hours. Help?

Macbook Pro (2011) froze while working, forced shut down, now won't turn on. Grey screen with apple logo and spinning wheel for hours. Help?
Unfortunately do not know the operating system since I never updated anything and I can't get in to it.
Thanks for your assistance.

If you want to preserve the data on the boot drive, and it's not already backed up, 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, you can skip this step.
There are several ways to back up a Mac that is not fully functional. You need an external hard drive to hold the backup data.
1. Boot from the Recovery partition or from a local Time Machine backup volume (option key at startup.) Launch Disk Utility and follow the instructions in this support article, under “Instructions for backing up to an external hard disk via Disk Utility.”
2. If you have access to a working Mac, and both it and the non-working Mac have FireWire or Thunderbolt ports, boot 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.
3. 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.

MacBook pro 15" 2008 freezes at apple logo and spinning wheel

Have a MacBook pro early 2008 have installed lion but recently started to have problems. Started to freeze a lot so I would restart and most of the time it would work untill it froze again , now it's got worst every time I restart my Mac it won't go past apple logo and spinning wheel just freezes have been trying and trying but same thing freezes. Tried to start in save mode but no still freezes
Please has anyone got any suggestions thanks

The startup disk may need repairing.
Use Lion Recovery
Not enough free space on the startup disk can cause the system to freeze.
Right or control click the MacintoshHD icon. Click Get Info. In the Get Info window you will see Capacity and Available. Make sure there's a minimum of 15% free disk space.

Mac pro running OS 10.5.8 won't boot. Apple logo and spinning wheel shows then Apple logo turns into Forbidden signage while spinning wheel continue. It happenened right after I installed a firmware. Had to restart.Please help. What can I do?

Mac pro running OS 10.5.8 won't boot. Apple logo and spinning wheel shows then Apple logo turns into Forbidden signage while spinning wheel continue. It happenened right after I installed a firmware. Had to restart.Please help. What can I do?

Work through the suggestions in this article:
Mac OS X: Gray screen appears during startup

I did an auto software update on my iMac, which included a restart. When the machine restarted it's stuck with an Apple logo and spinning wheel. I've tried all of the key strokes that are supposed to work, but nothing has. Any suggestions? Thanks!

I did an auto software update on my iMac, which included a restart. When the machine restarted it's stuck with an Apple logo and spinning wheel. I've tried all of the key strokes that are supposed to work, but nothing has. Any suggestions?

Gray screen could be any number of things, bad third party at boot kext file, a bad Apple one, a bad install/upgrade of OS X, drive corruption etc.
Run through this list of fixes
Step by Step to fix your Mac

MacBook pro bought in 2010 when u turn it on screen is gray with apple logo and spinning wheel and won't turn on???

When trying to turn on MacBook pro bought in 2010 (Mac OS X) I get a gray screen with an apple logo and a spinning wheel. Won't go any further. Any ideas? I have photos I haven't saved and don't want to loose them.

stevesurplus wrote:
and a few other suggested solutions and they have not worked?
What are the 'other suggested solutions'?
Ciao.

IMac is stuck on apple logo and spinning wheel stop spinning

Hello everyone, I have iMac 9,1, somehow i lost my OS X partition and i left with just a Windows. So now i tried to clean install new OS X Yorshmite, i boot a new installation and a apple logo is spinning and after 2 minutes it stuck and usb driver stop reading, 5 minutes after iMac just shut down and that's it. I can't access recovery mode.
I tried with replacing old with new Hard Drive, removing RAMs, diferent versions of OS X and still nothing. A can't boot in SAFE MODE or Recovery Mode.
Windows 7 working fine and i can boot it without problems.
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Imac hangs with apple logo and spinning wheel when warm

My imac seems to run just fine while it's up. However, after it's been on for a while and I reboot it (like when installing an update) it will get to a gray screen with the apple logo and a spinning wheel. After it has had time to sit awhile ( about 1/2 hour) it will start up just fine and run great until I have to do another reboot.
It will not even boot into safe mode until it cools down. I have reset the NVRAM, run the diagnostics on the hard drive (which showed no errors), swapped out the keyboard, disconnected evrything ( even tried without the keyboard), swapped memory and as a last resort wiped the disk and reinstalled the OS. None of this has helped.
At this point I am thinking that it is either a bad power supply or logic board. Is there a way to fully test each of these to determine which one is causing the problem. I do not have an extra of either that I can swap in temporarly to try and I do not want to spend the money buying something that I may not need. Neither one of those items are cheap.
Can anyone tell me how I can isolate which one it is? Is there a good program I can use to tell me this?
Any help and information would be greatly appreciated.
Thank you
Ray C

Apple is pretty specific about trouble shooting this, please carefully read and then methodically follow all the steps in the following article:
http://support.apple.com/kb/ts2570
Good luck, however I think you have a hardware issue that will require your taking it into an Apple Store or AASP to be professionaly diagnosed.

IMac (early 2008): grey screen with Apple logo and spinning wheel

Hi there,
I have recently had a problem with my iMac - it started with distorted graphics and I booted into Safe Boot to back up all files with the intention of reinstalling OS X (either from original install CDs or from USB drive with Mountain Lion on). Safe Boot got rid of the distorted graphics but as I rebooted to reinstall, the iMac hung on the spinning wheel on a grey screen with the Apple logo.
I have tried (in no particular order) : resetting PRAM and SMC, booting from original install CDs, booting from the self-created Mountain Lion USB stick, booting into Safe Boot again, booting normally, taking out keyboard/mouse and booting normally... the pinwheel either freezes, the iMac reboots itself, or comes up with a screen telling me to reboot due to a problem. If I hold down command-V at startup it always freezes/fails at the same point and there's usually a previous shutdown cause of 3 or -128?!
I don't seem to be able to run the hardware test either from DVD or internet, I can boot into single user mode and the iMac will stay up for hours but I don't know what to look at or what to fix! There are kernel panic logs relating to some of the shutdowns but as I can't view these out of single-user mode I can't attach them to the post but can look & reply on another machine.
It's an early 2008 iMac, 24" screen, running OS X 10.8.2 - I'd appreciate any help and will try to provide any extra information anyone needs (that I can glean from single user mode, anyway!)
Kind regards,
Carly

I've looked at that, I did try to link the discussion to the article but it failed too Thank you though.
I just created an Ubuntu DVD to run - the graphics are distorted on that too so I'm guessing it's a fault with the graphics card. I don't have the knowledge to confirm/deny it so a trip to an Apple Store is probably in order?

I have a mac book pro 2010 and when i turn it on i get the gray apple logo and a spinning wheel.

it acts like it's going to download, but gets halfway through and turns back off. i've tried to put it in safe mode by holding the shift button down, but it wont do anything..

Use the original installation disk and get into Disk Utility.
Insert the DVD in your MBP as if you will be installing the OSX.
When you get to a display where there is a menu bar on top, click on UTILITIES.
From the drop down menu, select Disk Utility.
Op[en Disk Utility.First Aid and run Verify and Repair.
Ciao.

I just see apple logo and spinning wheel when I turn computer on.

I installed the recent updates and now I can't the computer to start.

Holding the option key when startup will start the lion recovery console and you can restore lion from a time machine backup or reinstall lion alltogether

Hi i have been problems on start up it will shut down after 1 second through the apple logo and spinning wheel yet once my Mac Pro 2008 starts up fully it works fine till i shut down then it all starts over

I copied this
May 12 20:58:59 localhost com.apple.launchd[1]: *** launchd[1] has started up. ***
May 12 20:59:07 localhost com.apple.kextd[10]: Can't create kext cache under / - owner not root.
May 12 20:59:08 localhost bootlog[39]: BOOT_TIME: 1336852733 0
May 12 20:59:11 localhost DirectoryService[36]: Improper shutdown detected
there is more but does this give anyone an idea
Regards Jim

Linc has suggested you use Disk Utility "Repair Permissions". This is one of the few obscure cases where "Repair Permissions" should be exactly the right solution.
For almost every other routine problem, the Disk Utility function "Repair Disk" is the right choice, and "Repair Permissions" is just a distraction.

IMac is stuck on apple logo and spinning wheel

My wife did a software update and them it asked for a restart, she click restart but the computer got stuck in apple logo and spinning wheel. Won't go past that now. Just keeps spinning! Help for I know not what to do!!!! Please any idea?

An invalid node is an error DU cannot repair. If you don't mind spending $100 for Disk Warrior, then I suggest you buy it because it can fix the error. Otherwise, do as the warning says. Backup your files. You will then have to erase the drive and reinstall. The procedure is:
Install or Reinstall Lion/Mountain Lion from Scratch
Be sure you backup your files to an external drive or second internal drive because the following procedure will remove everything from the hard 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.
Erase the hard drive:
1. Select Disk Utility from the main menu and click on the Continue button.
2. After DU loads select your startup volume (usually Macintosh HD) from the
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3. Set the format type to Mac OS Extended (Journaled.) Optionally, click on
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4. Quit DU and return to the main menu.
Reinstall Lion: Select Reinstall Lion/Mountain Lion and click on the Install button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible
            because it is three times faster than wireless.

Update: Video - Canon 6D turns itself off after a few shots with fully charged battery

Update: I uploaded my video to youtube, please comment:
http://youtu.be/3PNLUYd8g7A
TIA and pardon me for my English.
I posted this originally at another forum, and somebody suggested me to post it here as well, to get more help.
Long story short, I purchased a brand new Canon 6D from B&H on Oct 24th, 2013. From early december, the camera starts to shut itself off randomly and displaying empty battery. I found the camera constantly shuts itself off after 20 - 100 continuous shots with a FULLY charged battery (right off charger, showing 8.23V using multimeter, and showing 98% in battery info).
The camera will just turn itself off in the middle of shooting, showing empty battery int the shoulder window. The solution is simple, open the battery door, then close it again, no need even to pull the battery.
So, I contacted Canon support, sent the camera to the VA service facility, waiting for it be repaired. As an engineer myself, I understand things fail, and I thought this is such an easy issue to reproduce, anybody should be able to repro it.
Couple of days later, I received a phone call to send my accessories in, no problem, debugging needs more info, that's normal. I sent my lens and stuff in. I unfortunately had to bear the cruel fact that I don't have a decent camera for the holiday, though I have a backup.
After a long wait, on 12/28the, the accessories were delivered at 9:35am. At 10am, they called me, they were sending the camera back. No issue at all. I was like, have you tested AT ALL? They didn't care, sending the camera back regardless.
I received the camera on Jan 2nd, and saw the same issue on that day. Of course, it was NOT fixed at all.
I googled really hard, somebody said he had similar issue but it was a defective battery, so I got a brand new Canon battery, unfortunately, the same issue pops up again.
Ok, the only choice for me is to send it back again. But this time I am totally amazed by Canon.
I sent the camera in again with my lens and battery. Also, a video showing the issue on a standalone CF card (I know 6D does not take CF, just to put the video on it).
Couples of days later, they called asking for accessories, I was like, what accessories, I don't have any more.
Then the camera sit in their facility for a few days for nothing. All of sudden I received a phone call on Monday morning, said it is ready. The camera has no issue at all.
I called, asked whether they have watched the video, they told me two technicians, including a senior one, was not able to upload the video to the computer. I was like, what the hell? why the heck you need to upload it to the computer, find a card reader, plug the card in, double click, how simple is that?
I talked to the service manager over the phone, he told me that there is nothing he could do, if their technician said so. They have decided to send my camera back, NOT fixed, again. I esclated the issue again, but haven't heard anything back yet.
Honestly, I am totally pissed, how stupid can they be? I included a letter with detailed steps on how to reproduce this issue. As an engineer myself, I know how easy to reproduce this issue. But what shocked me is that they don't even know or they didn't even bother to watch the video. In the same letter, I asked/begged them to contact me if they cannot reproduce the issue instead of just sending it back unfixed.
Guys, any other ways to get their attention? I already filed a BBB complaint. For a brand new camera of 3 months old, it has been in Canon's repair shop for almost a month. Leave to say that I missed the most importand holiday season in the year. This is simply not acceptable.

"The camera usually shuts itself off after 20-100 continuous shot, ..."
By this you mean your are in continuous drive? You just hold the shutter release down until it stops shooting?
"... the shoulder LCD shows a ..."
What is the "shoulder" LCD?
Sorry for the extra questions but I am trying to understand exactly what you are going through and why Canon said it is OK.
Canon did not say it was all right if it is not.
You are, also saying, if you use the camera, just for a single snap shot, say several in a session, it is OK? Right?
It only shuts down when on continuous drive or video?
EOS 1Ds Mk III, EOS 1D Mk IV EF 50mm f1.2 L, EF 24-70mm f2.8 L,
EF 70-200mm f2.8 L IS II, Sigma 120-300mm f2.8 EX APO
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My iPhone 3GS keeps turning itself off all the time for no reason every time I put it on silent or just get a Facebook message I have a broken sleep/power button anyone know how to fix this problem?

My iPhone 3GS keeps turning itself off all the time the power/sleep button dosent work so it's quiet annoying having to plug it in all the time dose anyone have a fix for this?

The "fix" is to get the phone repaired. There's no magic solution for a broken phone.
Bring your phone ant $149 to Apple for an out of warranty replacement, or find a 3rd party repair shop near you.

My iMac (intel based early 2008) turns itself off after the gray apple logo and spinning wheel

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