Error 21 what does it mean, error 21 what does it mean

im trying to restore my iphone 4 but it will not let me im getting an error code of 21 can anyone help me

iOS: Resolving update and restore alert messages

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    http://www.adobe.com/support/downloads/thankyou.jsp?ftpID=5595&fileID= 5604

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  • My Macbook pro keeps crashing..does anyone know what this error report means

    I have a MacBook Pro (2011) with Lion OS X 10.7.5 on it. Systematically over the last week it has been giving errors, rebooting, Time Machine Backup has stopped working (I do have a backup that was made just befrore these errors).
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    Interval Since Last Panic Report:  2717694 sec
    Panics Since Last Report:          3
    Anonymous UUID: E0E7507D-609A-4800-A38E-9C1534A5E796
    Mon Jan 14 11:59:37 2013
    panic(cpu 6 caller 0xffffff80002c4794): Kernel trap at 0xffffff80002aa18b, type 14=page fault, registers:
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    RAX: 0x000000000001ea71, RBX: 0xfffffe8000000000, RCX: 0xffffff80161801a0, RDX: 0x0000000000000021
    RSP: 0xffffff8128783068, RBP: 0xffffff8128783090, RSI: 0x0000000000000040, RDI: 0xffff800000000000
    R8: 0x0000000000000000, R9: 0xffffff80106f2e20, R10: 0xfffeffffffffffff, R11: 0x000ffffffffff000
    R12: 0x0000000000000000, R13: 0x0000000000000000, R14: 0xffffff802f005490, R15: 0x00000001084ca000
    RFL: 0x0000000000010246, RIP: 0xffffff80002aa18b, CS:  0x0000000000000008, SS:  0x0000000000000010
    CR2: 0x0000000000000000, Error code: 0x0000000000000000, Faulting CPU: 0x6
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    0xffffff8128782d10 : 0xffffff8000220792
    0xffffff8128782d90 : 0xffffff80002c4794
    0xffffff8128782f40 : 0xffffff80002da55d
    0xffffff8128782f60 : 0xffffff80002aa18b
    0xffffff8128783090 : 0xffffff80002adcbe
    0xffffff81287830a0 : 0xffffff800026fc58
    0xffffff8128783120 : 0xffffff8000265468
    0xffffff81287831b0 : 0xffffff80005a8647
    0xffffff81287836f0 : 0xffffff80005a93e1
    0xffffff8128783f30 : 0xffffff80005a994b
    0xffffff8128783f50 : 0xffffff80005ce4cb
    0xffffff8128783fb0 : 0xffffff80002daea3
    BSD process name corresponding to current thread: ReportCrash
    Mac OS version:
    11G63b
    Kernel version:
    Darwin Kernel Version 11.4.2: Thu Aug 23 16:25:48 PDT 2012; root:xnu-1699.32.7~1/RELEASE_X86_64
    Kernel UUID: FF3BB088-60A4-349C-92EA-CA649C698CE5
    System model name: MacBookPro8,3 (Mac-942459F5819B171B)
    System uptime in nanoseconds: 3340344072695
    last loaded kext at 2340934338679: com.apple.driver.AppleUSBCDC  4.1.22 (addr 0xffffff7f807ca000, size 16384)
    last unloaded kext at 2409737033308: com.apple.driver.AppleUSBCDC         4.1.22 (addr 0xffffff7f807ca000, size 12288)
    loaded kexts:
    com.rim.driver.BlackBerryUSBDriverInt     0.0.74
    com.apple.filesystems.smbfs            1.7.2
    com.apple.driver.AppleHWSensor   1.9.5d0
    com.apple.driver.AppleMikeyHIDDriver     122
    com.apple.driver.AppleHDA 2.2.5a5
    com.apple.driver.AppleMikeyDriver           2.2.5a5
    com.apple.driver.AudioAUUC           1.59
    com.apple.driver.AGPM        100.12.75
    com.apple.kext.ATIFramebuffer      7.3.2
    com.apple.driver.AppleUpstreamUserClient          3.5.9
    com.apple.driver.SMCMotionSensor           3.0.2d6
    com.apple.driver.AppleSMCPDRC   5.0.0d8
    com.apple.driver.AppleSMCLMU     2.0.1d2
    com.apple.iokit.IOUserEthernet       1.0.0d1
    com.apple.iokit.IOBluetoothSerialManager            4.0.8f17
    com.apple.Dont_Steal_Mac_OS_X      7.0.0
    com.apple.driver.AudioIPCDriver    1.2.3
    com.apple.driver.ApplePolicyControl          3.1.33
    com.apple.driver.ACPI_SMC_PlatformPlugin          5.0.0d8
    com.apple.driver.AppleLPC  1.6.0
    com.apple.driver.AppleMuxControl            3.1.33
    com.apple.ATIRadeonX3000           7.3.2
    com.apple.driver.AppleMCCSControl          1.0.33
    com.apple.driver.AppleIntelHD3000Graphics       7.3.2
    com.apple.filesystems.autofs            3.0
    com.apple.driver.AppleUSBTCButtons        227.6
    com.apple.driver.BroadcomUSBBluetoothHCIController  4.0.8f17
    com.apple.driver.AppleUSBTCKeyboard    227.6
    com.apple.driver.AppleIRController            312
    com.apple.iokit.SCSITaskUserClient            3.2.1
    com.apple.driver.XsanFilter 404
    com.apple.iokit.IOAHCISerialATAPI 2.0.3
    com.apple.iokit.IOAHCIBlockStorage           2.1.0
    com.apple.AppleFSCompression.AppleFSCompressionTypeDataless      1.0.0d1
    com.apple.AppleFSCompression.AppleFSCompressionTypeZlib  1.0.0d1
    com.apple.BootCache            33
    com.apple.driver.AppleFWOHCI      4.9.0
    com.apple.driver.AirPort.Brcm4331           561.7.22
    com.apple.iokit.AppleBCM5701Ethernet   3.2.4b8
    com.apple.driver.AppleEFINVRAM  1.6.1
    com.apple.driver.AppleUSBHub      5.1.0
    com.apple.driver.AppleSmartBatteryManager      161.0.0
    com.apple.driver.AppleAHCIPort     2.3.1
    com.apple.driver.AppleRTC  1.5
    com.apple.driver.AppleACPIButtons           1.5
    com.apple.driver.AppleUSBEHCI     5.1.0
    com.apple.driver.AppleHPET           1.7
    com.apple.driver.AppleSMBIOS       1.9
    com.apple.driver.AppleACPIEC        1.5
    com.apple.driver.AppleAPIC            1.6
    com.apple.driver.AppleIntelCPUPowerManagementClient          195.0.0
    com.apple.nke.applicationfirewall   3.2.30
    com.apple.security.quarantine        1.4
    com.apple.security.TMSafetyNet     8
    com.apple.driver.AppleIntelCPUPowerManagement        195.0.0
    com.apple.driver.DspFuncLib          2.2.5a5
    com.apple.iokit.IOFireWireIP           2.2.5
    com.apple.iokit.IOSurface     80.0.2
    com.apple.driver.AppleHDAController        2.2.5a5
    com.apple.iokit.IOHDAFamily           2.2.5a5
    com.apple.iokit.IOSerialFamily         10.0.5
    com.apple.iokit.IOAudioFamily         1.8.6fc18
    com.apple.kext.OSvKernDSPLib      1.3
    com.apple.driver.AppleSMC 3.1.3d10
    com.apple.driver.IOPlatformPluginLegacy 5.0.0d8
    com.apple.driver.AppleSMBusPCI   1.0.10d0
    com.apple.driver.IOPlatformPluginFamily 5.1.1d6
    com.apple.driver.AppleGraphicsControl     3.1.33
    com.apple.driver.AppleBacklightExpert     1.0.4
    com.apple.driver.AppleSMBusController    1.0.10d0
    com.apple.kext.ATI6000Controller 7.3.2
    com.apple.kext.ATISupport  7.3.2
    com.apple.iokit.IONDRVSupport      2.3.4
    com.apple.driver.AppleIntelSNBGraphicsFB          7.3.2
    com.apple.iokit.IOGraphicsFamily    2.3.4
    com.apple.kext.triggers         1.0
    com.apple.driver.AppleUSBMultitouch       230.5
    com.apple.driver.AppleUSBBluetoothHCIController         4.0.8f17
    com.apple.iokit.IOBluetoothFamily  4.0.8f17
    com.apple.driver.AppleThunderboltDPInAdapter            1.8.5
    com.apple.driver.AppleThunderboltDPAdapterFamily    1.8.5
    com.apple.driver.AppleThunderboltPCIDownAdapter     1.2.5
    com.apple.iokit.IOUSBHIDDriver     5.0.0
    com.apple.driver.AppleUSBMergeNub       5.1.0
    com.apple.iokit.IOSCSIMultimediaCommandsDevice        3.2.1
    com.apple.iokit.IOBDStorageFamily 1.7
    com.apple.iokit.IODVDStorageFamily          1.7.1
    com.apple.iokit.IOCDStorageFamily 1.7.1
    com.apple.driver.AppleThunderboltNHI    1.6.0
    com.apple.iokit.IOThunderboltFamily         2.0.3
    com.apple.iokit.IOFireWireFamily    4.4.8
    com.apple.iokit.IO80211Family       420.3
    com.apple.iokit.IOEthernetAVBController  1.0.1b1
    com.apple.iokit.IONetworkingFamily           2.1
    com.apple.iokit.IOUSBUserClient     5.0.0
    com.apple.iokit.IOAHCIFamily          2.0.8
    com.apple.driver.AppleEFIRuntime            1.6.1
    com.apple.iokit.IOHIDFamily            1.7.1
    com.apple.iokit.IOSMBusFamily       1.1
    com.apple.security.sandbox 177.8
    com.apple.kext.AppleMatch 1.0.0d1
    com.apple.driver.DiskImages           331.7
    com.apple.driver.AppleKeyStore     28.18
    com.apple.iokit.IOUSBMassStorageClass     3.0.3
    com.apple.driver.AppleUSBComposite        5.0.0
    com.apple.iokit.IOSCSIBlockCommandsDevice       3.2.1
    com.apple.iokit.IOStorageFamily      1.7.2
    com.apple.iokit.IOSCSIArchitectureModelFamily   3.2.1
    com.apple.iokit.IOUSBFamily            5.1.0
    com.apple.driver.AppleACPIPlatform         1.5
    com.apple.iokit.IOPCIFamily 2.7
    com.apple.iokit.IOACPIFamily          1.4
    Model: MacBookPro8,3, BootROM MBP81.0047.B27, 4 processors, Intel Core i7, 2.2 GHz, 10 GB, SMC 1.70f5
    Graphics: AMD Radeon HD 6750M, AMD Radeon HD 6750M, PCIe, 1024 MB
    Graphics: Intel HD Graphics 3000, Intel HD Graphics 3000, Built-In, 512 MB
    Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1333 MHz, 0x80CE, 0x4D34373142353737334448302D4348392020
    Memory Module: BANK 1/DIMM0, 8 GB, DDR3, 1333 MHz, 0x0000, 0x57494C4B0000000000000000000000000000
    AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xD6), Broadcom BCM43xx 1.0 (5.106.198.19.22)
    Bluetooth: Version 4.0.8f17, 2 service, 18 devices, 1 incoming serial ports
    Network Service: AirPort, AirPort, en1
    Serial ATA Device: TOSHIBA MK7559GSXF, 750.16 GB
    Serial ATA Device: MATSHITADVD-R   UJ-898
    USB Device: FaceTime HD Camera (Built-in), apple_vendor_id, 0x8509, 0xfa200000 / 3
    USB Device: hub_device, 0x0424  (SMSC), 0x2514, 0xfa100000 / 2
    USB Device: Apple Internal Keyboard / Trackpad, apple_vendor_id, 0x0245, 0xfa120000 / 5
    USB Device: BRCM2070 Hub, 0x0a5c  (Broadcom Corp.), 0x4500, 0xfa110000 / 4
    USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x821a, 0xfa113000 / 7
    USB Device: hub_device, 0x0424  (SMSC), 0x2514, 0xfd100000 / 2
    USB Device: USB Receiver, 0x046d  (Logitech Inc.), 0xc52f, 0xfd130000 / 5
    USB Device: My Passport 0748, 0x1058  (Western Digital Technologies, Inc.), 0x0748, 0xfd120000 / 4
    USB Device: IR Receiver, apple_vendor_id, 0x8242, 0xfd110000 / 3
    I am not sure what this means or what it is telling me, but I fear it may be my hard drive crashing. The rebboting occurs at various times..opening outlook, trying a TMB..downloading an update from the net...no specific action happens before this..
    I hope someone can help me.
    Thanks
    Kim

    Time and time again, this particular kernel extension:
    com.rim.driver.BlackBerryUSBDriverInt     0.0.74
    ...will cause kernel panics. Remove it from your System and put it in a folder on your Desktop and restart. See if your machine is stable without it.
    Clinton

  • My iPod doesn't sync it keeps coming up with the message "The iPod 'iPod Nano' cannot be synced. An unknown error occurred (13019)." What does this mean and how can I fix it.

    My iPod doesn't sync it keeps coming up with the message "The iPod 'iPod Nano' cannot be synced. An unknown error occurred (13019)." What does this mean and how can I fix it?

    I am getting the same error message. Have you figured it out?

  • What does it mean when I get "there was an error in the App Store. Please try again later. (4)"?

    What does it mean when I get “there was an error in the App Store. Please try again later. (4)”?

    Sign out of the Mac App Store via the Store menu
    Quit the Mac App Store
    Log out of your Mac OS X user account (from the Apple menu)
    Log back in to your user account
    Launch the Mac App Store, sign in, and try downloading again
    You should be able to download any app trouble free now. If you still have problems, reboot your Mac.

  • What does this error mean? There was an error in the App Store. Please try again later. (100)

    what does this error mean? There was an error in the App Store. Please try again later. (100)

    I have the same problem and thought it might be related to moving to Denmark. My app store account was set up for USA and then the error number in parentasis was (13). After changing the profile to Denmark the number changed to (100), like yours

  • HT204053 I have downloaded icloud to my pc, however when i go to sign in to Apple through icloud, i get an error message saying my apple ID is valid but is not an icloud account. What does this mean and how can i update my account so i can access icloud?!

    I have downloaded icloud to my pc, however when i go to sign in to Apple through icloud, i get an error message saying my apple ID is valid but is not an icloud account. What does this mean and how can i update my account so i can access icloud?!

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