My Imac G4 is stuck on apple logo screen with a spinning wheel

My imac won't boot past the logo screen and the spinning wheel.

Hello,
Notwithstanding Barry's point; try working through this article.
mrtotes

Similar Messages

My 3gs is frozen on the Apple boot screen with a spinning wheel despite resets and restores as advised everywhere I look? Any other tips?

I'm sure this is probably covered in here somewhere but I can't find it, after an hour of searching I have already done everything I see suggested!
I'm stuck on the Apple booting screen on my 3gs with the spinning wheel, I've tried resetting and restored to earlier versions and to blank but everything ends the same.
Please help me!

Well if you are mechanically inclined you can try removing the battery and then reinserting it. There are a couple of good videos on youtube--milliamp has one---. You will need a .00 phillips screwdriver and a tool to remove the cables. I just replaced my batter and I can say that the difficulty level is about a 5 out of 10.

My apple wont turn on. it gets stuck on the gray screen with the spinning wheel and the apple on the screen

My macbook air turns on but not completely, it gets stuck on the grays screen.   It shows an apple an a spinning wheel and that is as far as it gets. sometimes I can get to an screen that shows macintosh hd and i clicked on it and the computer turned off.

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.” 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 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
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.

My 2011 IMac will not boot up past the White apple logo screen with the whirly circle

My 2011 IMac will not boot up past the White apple logo screen with the whirly circle. I have tried various commands but to no avail. does anybody have any advice?

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.” 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 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 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.

HT1533 My MacBook Pro fell and now when I turn it on its stuck at the apple logo screen with a loading circle underneath it. What can I do to get passed this?

My MacBook Pro fell and now when I turn it on its stuck at the apple logo screen with a loading circle underneath it. What can I do to get passed this?

Sounds like something internal was damaged in the fall, probably the disk drive. Take to Apple and ask them to fix it.
Allan

I replaced my 2010-2011 iMac internal HD i dont have an install disk i created one with my external HD but when i go to install lion onto my imac it stays at the apple logo screen.HELP ME PLEASE!

I replaced my 2010-2011 iMac internal HD i dont have an install disk i created one with my external HD but when i go to install lion onto my imac it stays at the apple logo screen.HELP ME PLEASE!

Boot from the original Install disc that came with the computer and then format the drive Mac OS Extended (Journaled) using the GUID partition. Then you can re-install OS X. If you no longer have the original media call AppleCare with the serial number of the machine (look on the bottom of the stand) and for a nominal fee they will ship you replacement media.
The chances are very good you will have fan problems if you used an off-the-shelf HD, beginning in 2009 Apple began using HD's from vendors that incorporated heat sensors into the HD. If you did not buy the same type of HD your computer will think the HD is overheating causing the fans to run at full speed.

I was updating my macbook pro and it restarted but didn't boot up. It made it to the gray apple screen with a spinning wheel underneath it. What do I do?

I was updating my macbook pro and it restarted but didn't boot up. It made it to the gray apple screen with a spinning wheel underneath it. What do I do?

This was happening to mine as well and I had to take it in a few times and they had to wipe it completely. If your computer is more that 5 years old, it may be that it is time for a new one. I suggest taking it in so they can diagnose it!

Imac 5k stuck on apple logo screen after latest update

Hi - i have a magazine deadline and a major issue:
i've been having loads of kernel panics (see thread here Brand new imac 5k kernel panic) and having seen there was a new update figured it would be worth installing it to see if it fixed them as nothing so far suggested by apple support has helped. Once it had downloaded the update the OS said it needed to reboot to finish installation. It got half way through the loading bar on the apple logo screen and got stuck. I left it an hour, came back still nothing. Left it another hour and it was still just stuck half way. I rebooted into diagnostics and ran that and it said everything was fine but further reboots just get as far as halfway through the bar. I'm now stuck as the computer was only a month or so old and i hadn't yet set up back up on it. I was still in the process of getting everything configured and over from my old machine. Problem is I have a bunch of photos that were transferred on to it that i shot 2 weeks ago and I need them for a magazine deadline tomorrow and apple support options could only call me back on Thursday - if anyone can suggest anything i will be VERY grateful. I've already tried SMC and PRAM resets.

I did that, a fresh OS install and it worked for about 4 hours then i got a kernel panic
Anonymous UUID:       DE8E807F-E592-FD5D-3D3B-73B0BCCE57D4
Fri May 1 00:30:12 2015
*** Panic Report ***
panic(cpu 0 caller 0xffffff8018f6bf28): "a freed zone element has been modified in zone kalloc.64: expected 0xdeadbeefdeadbeef but found 0xdead9eefdeadbeef, bits changed 0x200000000000, at offset 40 of 64 in element 0xffffff80647c1c00, cookies 0x3f0011bcd6adda0a 0x53521f311ca5c19"@/SourceCache/xnu/xnu-2782.20.48/osfmk/kern/zalloc.c:496
Backtrace (CPU 0), Frame : Return Address
0xffffff83c1ef3730 : 0xffffff8018f2bda1
0xffffff83c1ef37b0 : 0xffffff8018f6bf28
0xffffff83c1ef38e0 : 0xffffff8018f34601
0xffffff83c1ef3910 : 0xffffff801945c513
0xffffff83c1ef3950 : 0xffffff801945f027
0xffffff83c1ef3980 : 0xffffff80194e958c
0xffffff83c1ef39f0 : 0xffffff80194e90d2
0xffffff83c1ef3a50 : 0xffffff7f9a79dcf6
0xffffff83c1ef3ad0 : 0xffffff7f9a7a25e8
0xffffff83c1ef3b20 : 0xffffff7f9a7a3350
0xffffff83c1ef3b60 : 0xffffff80195017cf
0xffffff83c1ef3bc0 : 0xffffff80194ff0c3
0xffffff83c1ef3d00 : 0xffffff8018fe21e7
0xffffff83c1ef3e10 : 0xffffff8018f3000c
0xffffff83c1ef3e40 : 0xffffff8018f149f3
0xffffff83c1ef3e90 : 0xffffff8018f2531d
0xffffff83c1ef3f10 : 0xffffff80190031ea
0xffffff83c1ef3fb0 : 0xffffff8019035396
      Kernel Extensions in backtrace:
         com.apple.iokit.IOAcceleratorFamily2(156.14)[BE7D765B-49C1-34F9-B75E-3EAF8A4062 A3]@0xffffff7f9a786000->0xffffff7f9a7f4fff
            dependency: com.apple.iokit.IOPCIFamily(2.9)[52E715FC-521D-3869-B2EA-5228FA4BEA34]@0xffffff 7f99724000
            dependency: com.apple.iokit.IOGraphicsFamily(2.4.1)[82EAD591-67E3-39CB-A232-A8095CA30E92]@0 xffffff7f9a72b000
BSD process name corresponding to current thread: WindowServer
Mac OS version:
14D136
Kernel version:
Darwin Kernel Version 14.3.0: Mon Mar 23 11:59:05 PDT 2015; root:xnu-2782.20.48~5/RELEASE_X86_64
Kernel UUID: 4B3A11F4-77AA-3D27-A22D-81A1BC5B504D
Kernel slide:     0x0000000018c00000
Kernel text base: 0xffffff8018e00000
__HIB text base: 0xffffff8018d00000
System model name: iMac15,1 (Mac-42FD25EABCABB274)
System uptime in nanoseconds: 19669481944459
last loaded kext at 1177984628424: com.apple.filesystems.ntfs 3.12 (addr 0xffffff7f9c01d000, size 376832)
last unloaded kext at 1401779154535: com.apple.filesystems.ntfs 3.12 (addr 0xffffff7f9c01d000, size 360448)
loaded kexts:
com.apple.filesystems.smbfs 3.0.1
com.apple.filesystems.afpfs 11.0
com.apple.nke.asp-tcp 8.0.0
com.apple.driver.AppleBluetoothMultitouch 85.3
com.apple.driver.AudioAUUC 1.70
com.apple.filesystems.autofs 3.0
com.apple.iokit.IOUserEthernet 1.0.1
com.apple.iokit.IOBluetoothSerialManager 4.3.4f4
com.apple.driver.AppleUpstreamUserClient 3.6.1
com.apple.driver.AGPM 110.19.5
com.apple.driver.X86PlatformShim 1.0.0
com.apple.driver.ApplePlatformEnabler 2.2.0d4
com.apple.driver.AppleGraphicsDevicePolicy 3.7.7
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.AppleMikeyHIDDriver 124
com.apple.kext.AMDFramebuffer 1.3.2
com.apple.driver.AppleIntelHD5000Graphics 10.0.6
com.apple.driver.AppleHWAccess 1
com.apple.driver.AppleOSXWatchdog 1
com.apple.driver.AppleHDA 272.18
com.apple.driver.AppleMikeyDriver 272.18
com.apple.AMDRadeonX4000 1.3.2
com.apple.driver.AppleHV 1
com.apple.driver.AppleThunderboltIP 2.0.2
com.apple.driver.AirPort.Brcm4360 930.37.3
com.apple.iokit.AppleBCM5701Ethernet 10.1.3
com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.3.4f4
com.apple.driver.AppleSMCLMU 2.0.7d0
com.apple.driver.AppleLPC 1.7.3
com.apple.kext.AMD7000Controller 1.3.2
com.apple.driver.AppleIntelFramebufferAzul 10.0.6
com.apple.driver.AppleIntelSlowAdaptiveClocking 4.0.0
com.apple.driver.AppleMCCSControl 1.2.11
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
com.apple.BootCache 36
com.apple.driver.AppleUSBHub 705.4.2
com.apple.driver.XsanFilter 404
com.apple.iokit.IOAHCIBlockStorage 2.7.1
com.apple.driver.AppleSDXC 1.6.5
com.apple.driver.AppleAHCIPort 3.1.2
com.apple.driver.AppleUSBXHCI 710.4.11
com.apple.driver.AppleRTC 2.0
com.apple.driver.AppleACPIButtons 3.1
com.apple.driver.AppleHPET 1.8
com.apple.driver.AppleSMBIOS 2.1
com.apple.driver.AppleACPIEC 3.1
com.apple.driver.AppleAPIC 1.7
com.apple.nke.applicationfirewall 161
com.apple.security.quarantine 3
com.apple.security.TMSafetyNet 8
com.apple.iokit.IOSCSIBlockCommandsDevice 3.7.5
com.apple.iokit.IOUSBMassStorageClass 3.7.2
com.apple.security.SecureRemotePassword 1.0
com.apple.driver.IOBluetoothHIDDriver 4.3.4f4
com.apple.driver.AppleMultitouchDriver 263.9.1
com.apple.kext.triggers 1.0
com.apple.iokit.IOSerialFamily 11
com.apple.iokit.IOSurface 97.4
com.apple.driver.AppleGraphicsControl 3.10.22
com.apple.driver.DspFuncLib 272.18
com.apple.kext.OSvKernDSPLib 1.15
com.apple.iokit.IONDRVSupport 2.4.1
com.apple.iokit.IO80211Family 730.60
com.apple.iokit.IOEthernetAVBController 1.0.3b3
com.apple.driver.mDNSOffloadUserClient 1.0.1b8
com.apple.iokit.IONetworkingFamily 3.2
com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.3.4f4
com.apple.iokit.IOBluetoothFamily 4.3.4f4
com.apple.driver.AppleHDAController 272.18
com.apple.iokit.IOHDAFamily 272.18
com.apple.iokit.IOAudioFamily 203.3
com.apple.vecLib.kext 1.2.0
com.apple.driver.AppleSMBusPCI 1.0.12d1
com.apple.kext.AMDSupport 1.3.2
com.apple.driver.X86PlatformPlugin 1.0.0
com.apple.driver.AppleSMC 3.1.9
com.apple.driver.IOPlatformPluginFamily 5.9.1d7
com.apple.AppleGraphicsDeviceControl 3.10.22
com.apple.iokit.IOAcceleratorFamily2 156.14
com.apple.iokit.IOSlowAdaptiveClockingFamily 1.0.0
com.apple.driver.AppleSMBusController 1.0.13d1
com.apple.iokit.IOGraphicsFamily 2.4.1
com.apple.driver.AppleThunderboltEDMSink 4.0.2
com.apple.iokit.IOUSBUserClient 705.4.0
com.apple.iokit.IOSCSIArchitectureModelFamily 3.7.5
com.apple.driver.AppleUSBHIDKeyboard 176.2
com.apple.driver.AppleHIDKeyboard 176.2
com.apple.iokit.IOUSBHIDDriver 705.4.0
com.apple.driver.AppleUSBMergeNub 705.4.0
com.apple.driver.AppleUSBComposite 705.4.9
com.apple.driver.CoreStorage 471.20.7
com.apple.driver.AppleThunderboltDPInAdapter 4.0.6
com.apple.driver.AppleThunderboltDPOutAdapter 4.0.6
com.apple.driver.AppleThunderboltDPAdapterFamily 4.0.6
com.apple.driver.AppleThunderboltPCIDownAdapter 2.0.2
com.apple.driver.AppleThunderboltNHI 3.1.7
com.apple.iokit.IOThunderboltFamily 4.2.2
com.apple.iokit.IOAHCIFamily 2.7.5
com.apple.iokit.IOUSBFamily 720.4.4
com.apple.driver.AppleEFINVRAM 2.0
com.apple.driver.AppleEFIRuntime 2.0
com.apple.iokit.IOHIDFamily 2.0.0
com.apple.iokit.IOSMBusFamily 1.1
com.apple.security.sandbox 300.0
com.apple.kext.AppleMatch 1.0.0d1
com.apple.driver.AppleKeyStore 2
com.apple.driver.AppleMobileFileIntegrity 1.0.5
com.apple.driver.AppleCredentialManager 1.0
com.apple.driver.DiskImages 396
com.apple.iokit.IOStorageFamily 2.0
com.apple.iokit.IOReportFamily 31
com.apple.driver.AppleFDEKeyStore 28.30
com.apple.driver.AppleACPIPlatform 3.1
com.apple.iokit.IOPCIFamily 2.9
com.apple.iokit.IOACPIFamily 1.4
com.apple.kec.Libm 1
com.apple.kec.corecrypto 1.0
com.apple.kec.pthread 1
Model: iMac15,1, BootROM IM151.0207.B01, 4 processors, Intel Core i7, 4 GHz, 32 GB, SMC 2.22f16
Graphics: AMD Radeon R9 M290X, AMD Radeon R9 M290X, PCIe, 2048 MB
Memory Module: BANK 0/DIMM0, 8 GB, DDR3, 1600 MHz, 0x859B, 0x43543130323436344246313630422E433136
Memory Module: BANK 1/DIMM0, 8 GB, DDR3, 1600 MHz, 0x859B, 0x43543130323436344246313630422E433136
Memory Module: BANK 0/DIMM1, 8 GB, DDR3, 1600 MHz, 0x859B, 0x43543130323436344246313630422E433136
Memory Module: BANK 1/DIMM1, 8 GB, DDR3, 1600 MHz, 0x859B, 0x43543130323436344246313630422E433136
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x142), Broadcom BCM43xx 1.0 (7.15.166.24.3)
Bluetooth: Version 4.3.4f4 15601, 3 services, 27 devices, 1 incoming serial ports
Network Service: Wi-Fi, AirPort, en1
Serial ATA Device: APPLE SSD SM1024F, 1 TB
USB Device: BRCM20702 Hub
USB Device: Bluetooth USB Host Controller
USB Device: FaceTime HD Camera (Built-in)
USB Device: Keyboard Hub
USB Device: Apple Keyboard
USB Device: HD-PCU2
Thunderbolt Bus: iMac, Apple Inc., 26.1

IPod Touch 4G Stuck On Apple Logo Screen

So I just recently jail broke my iPod touch 4G and was using iFile to delete some default apps and stuff that was taking up space on my device. I only need to use the Music app, so all of the other default apps can be erased. I must have accidentally deleted something in regards to the music app because I am not able to transfer music onto the device using iTunes. I turned my iPod off then and turned it back on and this is where the major problem came in. It's stuck on the Apple Logo screen and will not boot back up or anything. I have tried putting it in DFU mode and doing every kind of reset or restore and none of that has worked. Now it doesn't even show up in iTunes. Unfortunately I don't remember every thing I deleted when using iFile, so I cannot provide much information regarding that. My iPod has worked perfectly fine until I jail broke it, which I probably shouldn't have even done but none the less if someone has any possible genius solution to my problem, I would appreciate you leaving a comment. Thanks.

See if yo missed anything here:
- 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

Ipod 5 stuck on apple logo screen

last night(about 22 hours ago) i tried to update my ipod 5 to ios 8.2 I clicked the install button and then left my ipod on my desk charging. I came back about an hour later and it was stuck on the apple logo screen but with no progress bar. Every minute or so so about 10 minutes it started to glitch out and shut down right when the lock screen would show up. It has been on the apple logo screen since then and i just got back from school to find it stuck. Occasionally it will get a little dimmer, but about a minute later it will be bright again.

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

Ipod nano 7th gen stuck on apple logo screen

New iPod nano 7th gen. At first attempt to upload songs, was prompted to update software. So, software was updated and as I was installing software update to the iPod, I got a message stating that the iPod was in the process of a restore (I think this is what it said. I didn't pay a whole lot of attention as i was not expecting any problems). I continued with the restore because nothing had been uploaded to the iPod yet so nothing would be lost. At this point, the device has been stuck on the apple logo screen for a couple of hours now. The only response I can get from it is when I do a reset. The screen will black as it should and then go right back to the logo and stay. Please help.....Son not happy as this was one of his Christmas presents this morning. Really not looking forward to a trip to the apple store on the day after Christmas.

I am afraid yo need to visit the store and possibly ask for a replacement. In some cases, doing the reset will correct any issues, but by the way you describe it, it freezes with apple logo. Better to get a replacement.

IMac randomly frozen at grey Apple logo screen.

Hi Guys,
I need your help.
My iMac randomly freezes at startup, at the grey Apple logo screen... some vertical black bars appears, the image is unclear and doubled. The round icon showing that the system is loading freezes. Some times, a black screen appears asking for the computer to be restarted.
I need to power off the iMac for 7-8 times and then it comes to normal till the next boot.
One time, a month ago, the same happened when I was already in leopard, but since then nothing. Now, in the last week, it's happening in 80% of the startups.
Any idea?
Thanks !!!
Andrei

1. Have you installed any third party RAM? If so try removing the third party RAM and install the Apple original RAM for testing.
2. Disconnect all external devices during testing. This means hard drives, ipods, printers, scanners, and hubs.
3. Boot to your install disk. Insert the install disk and hold down the "c" key at startup. Once it boots up select your language but instead of going through the install process go to the Utilities menu at the top select Disk Utility. Select your hard drive/Mac volume on the left then under the First Aid tab click Repair Disk. If that passes/repairs successfully Repair the Disk Permissions. Once this is finished go back to the Utilities menu, select Startup disk, choose your Mac OS X volume and click restart.
4. If you are still having issues insert your original gray iMac install disk, restart and hold down the "d" key. This will boot you to the Apple Hardware Test. Run the Extended test.
George

Stuck on Gray Apple logo screen, Gear keep spinning.

I have macBook. I was preparing m self for iPhone Development.
So i was installing the reference libraries. I click 2 or 3 library to get download, window become irresponsive. I was little impatient to know what has happened that what happened to my computer, I did powered it OFF, just form the next booting, my mac book is getting stuck on the gray screen with apple logo, gear is keep spinning.
I googled and read several article about the stucking of aaple product. but got nothing, just new combination of keys then new style of booting.
I came to know about the single user mode, I did that it went to single user mode
I did
fsck -fy and mount -uw /
it checking the root file system and told that file system modified.
then after typing the exit it start doing something and screen scrolls up.
then it just stuck on this mDNSResponder line...
(com.apple.mDNSResponder153): posix_spawnp(„/usr/sbin/mDNSResponder“, ….): No such file or directory
it not able to find it and keep trying for it. it seems this will run forever,
Can someone please suggest something that might fix this?
what is the procedure to restore from the install DVD, will it overwrite the all data which id in the Mac HD, or will just over write the system files.
But I want to keep this a last option, when everything is failed.
Any assistance would be greatly appreciated and I will love if something can tell me about the problem also

Try the following:
How to Perform an Archive and Install
An Archive and Install will NOT erase your hard drive, but you must have sufficient free space for a second OS X installation which could be from 3-9 GBs depending upon the version of OS X and selected installation options. The free space requirement is over and above normal free space requirements which should be at least 6-10 GBs. Read all the linked references carefully before proceeding.
1. Be sure to use Disk Utility first to repair the disk before performing the Archive and Install.
Repairing the Hard Drive and Permissions
Boot from your OS X 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 Installer menu (Utilities menu for Tiger.) 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, then quit DU and return to the installer.
2. Do not proceed with an Archive and Install if DU reports errors it cannot fix. In that case use Disk Warrior and/or TechTool Pro to repair the hard drive. If neither can repair the drive, then you will have to erase the drive and reinstall from scratch.
3. Boot from your OS X Installer disc. After the installer loads select your language and click on the Continue button. When you reach the screen to select a destination drive click once on the destination drive then click on the Option button. Select the Archive and Install option. You have an option to preserve users and network preferences. Only select this option if you are sure you have no corrupted files in your user accounts. Otherwise leave this option unchecked. Click on the OK button and continue with the OS X Installation.
4. Upon completion of the Archive and Install you will have a Previous System Folder in the root directory. You should retain the PSF until you are sure you do not need to manually transfer any items from the PSF to your newly installed system.
5. After moving any items you want to keep from the PSF you should delete it. You can back it up if you prefer, but you must delete it from the hard drive.
6. You can now download a Combo Updater directly from Apple's download site to update your new system to the desired version as well as install any security or other updates. You can also do this using Software Update.

My Mac g5 is stuck on apple logo screen, please help!

I have a Mac g5 before they had intel (so its pretty old) and today it was stuck on the apple logo screen and the fans become really loud. I don't know what's wrong with it, I'm scared to do anything as I don't wanna lose all my files. I was going to take it to the apple store to get it fixed but if there is nothing they can do I don't wanna take a 45 min drive to get there. Any info will help! Thanks!
Megan

Hi Megan,
Most Apple stote don't know what a G5 is, nor will most even look at them or work on them, so call 1st if deciding to try that.
If worse comes to worse we can easily pull the drive(s) & get the info back most likely.
You'll have to power off, then hold alt key at bootup to see if any boot disks show up.
If not...
Does it boot to Single User Mode, CMD+s keys at bootup, if so try...
/sbin/fsck -fy
Repeat until it shows no errors fixed.
(Space between fsck AND -fy important).
Resolve startup issues and perform disk maintenance with Disk Utility and fsck...
http://docs.info.apple.com/article.html?artnum=106214
Do you have the G5's Install Disc?

Iphone 5 Stuck at Apple Logo Screen

I finally updated my iphone 5 to latest ios when it begin to boot up. It got stuck at the apple logo screen and it been their for 30 mins i trun my phone off put it back on. I did a hard re-reset etc..
Also after a while it would go black real quick then return to apple logo screen.
I dont want to restore my phone because i dont have a recent backup for everything i have on my phone as of right now.
Is their any way i can backup my iphone at the apple logo screen then restore it?
Or any other methods to escape this apple logo screen of death?

Unfortunately, you are going to have to try to restore it. You will have to do this by putting your phone into DFU (recovery) mode.
1. Open iTunes, plug your sync cable into your computer, but do not plug in your phone.
2. Press and hold the power button and the home button at the same time. When the screen goes black, let go of the power button but continue to hold the home button for about 15 seconds. Once you do this, plug the sync cable into your phone.
3. iTunes should recognize your phone and tell you it's in recovery mode.
4. Restore your device.
Hope this helps.

My Imac G4 is stuck on apple logo screen with a spinning wheel

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