iphone 6 plust update to 8.1 failed with unknown error (6)

Question

iphone 6 plust update to 8.1 failed with unknown error (6)

Trying to update my iphone 6 plus to ios 8.1 using windows laptop running windows 7. It failed with giving message update failed with unknown error (6).

Exact error is:

The iPhone "iPhone" could not be restored. An unknown error occured (6).

After this whenever I connect iphone to my laptop itunes shows serial number as n/a and it keeps on asking me to restore but always fails.

Any help in resolving the issue (either completing the update or restoring to factory defaults) is highly appreciates.

Thanks.

Checked the update logs and see the following at the end:

[11:07:48.0460] requested restore behavior: Erase

[11:07:48.0461] device did not return saved USB log

[11:07:48.0461] device did not return saved panic log

[11:07:48.0462] previous restore failed with exit status 0x100

[11:07:48.0463] connected to service com.apple.mobile.restored

[11:07:48.0464] using protocol version 13

[11:07:48.0464] unable to open device_map.txt: No such file or directory

[11:07:48.0465] board config = n56ap

[11:07:48.0466] no value returned for BootArgs

[11:07:48.0467] _copyDeviceProperty() failed for restore bootargs

[11:07:48.0468] no value returned for MarketingPartNumber

[11:07:48.0469] _copyDeviceProperty() failed for mpn

[11:07:48.0469] requested restore behavior: Erase

[11:07:48.0470] value query for 'HardwareModel' returned 'N56AP'

[11:07:48.0471] Established proxy for device ID 4

[11:07:48.0522] <Restore Device 06B9BF48>: operation 35 progress -1

[11:07:48.0525] requested restore behavior: Erase

[11:07:50.0998] <Restore Device 06B9BF48>: operation 28 progress -1

[11:07:59.0151] no override trust object found

[11:08:20.0357] device returned CFError with code 6

[11:08:20.0361] dumping CFError returned by restored:

[11:08:20.0364] CFError domainXXXXXXXXXXXXXXXXXXXin code:6 description:Fatal FDR Error returned from RestoredFDRCreate()

[11:08:20.0368] Sending acknowledgement that final status was received

[11:08:20.0759] Restore completed, status:6

[11:08:20.0759] Failure Description:

[11:08:20.0759] Depth:0 Error:AMRestorePerformRestoreModeRestoreWithError failed with error: 6

[11:08:20.0759] Depth:1 Error:The operation couldn’t be completed. (AMRestoreErrorDomain error 6 - Failed to handle message type StatusMsg)

[11:08:20.0759] Depth:2 Error:The operation couldn’t be completed. (AMRestoreErrorDomain error 6 - Fatal FDR Error returned from RestoredFDRCreate())

iPhone 6 Plus, iOS 8.1

Posted on Nov 14, 2014 3:33 AM

Reply

Answer 1

mario49

Community Specialist

Nov 16, 2014 8:03 AM in response to sailesh.chopra

Hi sailesh.chopra,

Thanks for the question. After reviewing your post, it sounds like you are not able to update because of an error 6. I would recommend that you read this article, it may be able to help you isolate or resolve the issue.

Resolve iOS update and restore errors - Apple Support

Check your security software

Related errors: 2, 4, 6, 9, 1000, 1611, 9006. Sometimes security software can prevent your device from communicating with either the Apple update server or with your device.

Check your security software and settings to make sure that they aren't preventing a connection to the Apple servers.

Thanks for using Apple Support Communities.

Have a nice day,

Mario

Reply

Answer 2

Jul 31, 2015 11:09 AM in response to mario49

Please help.

Same issue occurred.

[16:40:51.0910] entering fixup_var

[16:40:51.0910] entering update_var_directory_hierarchy

[16:40:51.0910] replace_data_partition_path: moving /mnt1/private/var/mobile/Library/PreinstalledAssets to /mnt2/mobile/Library/PreinstalledAssets

[16:40:51.0910] copier_file_error: /mnt2/mobile/Library/PreinstalledAssets/com_apple_MobileAsset_Font.cpio: No space left on device

[16:40:51.0910] copy /mnt1/private/var/mobile/Library/PreinstalledAssets to /mnt2/mobile/Library/PreinstalledAssets failed: 0x2

[16:40:51.0910] unable to copy directory: 2

[16:40:51.0910] failed to replace path mobile/Library/PreinstalledAssets: 2

[16:40:51.0910] restore failed with CFError:

[16:40:51.0910] 0: AMRestoreErrorDomain/6: failed to fixup var

[16:40:51.0910] waiting for host to acknowledge final status received...

[16:40:51.0910] host received final status

[16:40:51.0910] attempting to dump restore log

[16:40:51.0910] writing log file: /mnt1/restore.log

[16:40:51.0910]

[16:40:51.0910] ==== end of previous restore log ====

[16:40:52.0635] <Restore Device <<<<<MEID>>>>>F0>: operation 29 progress -1

[16:40:52.0636] <Restore Device <<<<<MEID>>>>>F0>: operation 29 progress -1

[16:40:52.0637] <Restore Device <<<<<MEID>>>>>F0>: operation 16 progress -1

[16:40:56.0906] <Restore Device <<<<<MEID>>>>>F0>: operation 16 progress -1

[16:41:07.0255] <Restore Device <<<<<MEID>>>>>F0>: operation 51 progress -1

[16:41:08.0801] <Restore Device <<<<<MEID>>>>>F0>: operation 29 progress -1

[16:41:08.0848] <Restore Device <<<<<MEID>>>>>F0>: operation 29 progress -1

[16:41:08.0890] <Restore Device <<<<<MEID>>>>>F0>: operation 13 progress 0

[16:41:18.0893] <Restore Device <<<<<MEID>>>>>F0>: operation 13 progress 1

[16:41:18.0895] ASR progress: Initialized communication with client

[16:41:20.0292] <Restore Device <<<<<MEID>>>>>F0>: operation 13 progress 5

[16:41:20.0295] ASR progress: Starting to send payload

[16:41:21.0201] <Restore Device <<<<<MEID>>>>>F0>: operation 13 progress 6

[16:41:21.0203] ASR progress: Sending payload

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[16:42:12.0628] <Restore Device <<<<<MEID>>>>>F0>: operation 13 progress 64

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[16:42:13.0448] <Restore Device <<<<<MEID>>>>>F0>: operation 13 progress 65

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[16:42:20.0004] <Restore Device <<<<<MEID>>>>>F0>: operation 13 progress 73

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[16:42:20.0882] <Restore Device <<<<<MEID>>>>>F0>: operation 13 progress 74

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[16:42:21.0704] <Restore Device <<<<<MEID>>>>>F0>: operation 13 progress 75

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[16:42:25.0037] <Restore Device <<<<<MEID>>>>>F0>: operation 13 progress 79

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[16:42:25.0909] <Restore Device <<<<<MEID>>>>>F0>: operation 13 progress 80

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[16:42:27.0086] <Restore Device <<<<<MEID>>>>>F0>: operation 13 progress 81

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[16:42:27.0909] <Restore Device <<<<<MEID>>>>>F0>: operation 13 progress 82

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[16:42:28.0769] <Restore Device <<<<<MEID>>>>>F0>: operation 13 progress 83

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[16:42:29.0973] <Restore Device <<<<<MEID>>>>>F0>: operation 13 progress 84

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[16:42:31.0035] <Restore Device <<<<<MEID>>>>>F0>: operation 13 progress 85

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[16:42:32.0184] <Restore Device <<<<<MEID>>>>>F0>: operation 13 progress 86

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[16:42:34.0719] <Restore Device <<<<<MEID>>>>>F0>: operation 13 progress 88

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[16:42:36.0530] <Restore Device <<<<<MEID>>>>>F0>: operation 13 progress 89

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[16:42:38.0664] <Restore Device <<<<<MEID>>>>>F0>: operation 13 progress 90

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[16:42:39.0821] <Restore Device <<<<<MEID>>>>>F0>: operation 13 progress 91

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[16:42:44.0546] <Restore Device <<<<<MEID>>>>>F0>: operation 13 progress 95

[16:42:44.0547] ASR progress: Sending payload

[16:42:45.0490] <Restore Device <<<<<MEID>>>>>F0>: operation 13 progress 96

[16:42:45.0491] ASR progress: Sending payload

[16:42:46.0483] <Restore Device <<<<<MEID>>>>>F0>: operation 13 progress 97

[16:42:46.0486] ASR progress: Sending payload

[16:42:47.0781] <Restore Device <<<<<MEID>>>>>F0>: operation 13 progress 98

[16:42:47.0782] ASR progress: Sending payload

[16:42:49.0890] <Restore Device <<<<<MEID>>>>>F0>: operation 13 progress 100

[16:42:49.0892] ASR progress: Finished

[16:42:50.0549] <Restore Device <<<<<MEID>>>>>F0>: operation 14 progress 2

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[16:42:51.0078] <Restore Device <<<<<MEID>>>>>F0>: operation 14 progress 6

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[16:43:03.0306] <Restore Device <<<<<MEID>>>>>F0>: operation 14 progress 100

[16:43:03.0336] <Restore Device <<<<<MEID>>>>>F0>: operation 16 progress -1

[16:43:08.0805] <Restore Device <<<<<MEID>>>>>F0>: operation 16 progress -1

[16:43:19.0149] requested restore behavior: Update

[16:43:19.0149] <Restore Device <<<<<MEID>>>>>F0>: operation 27 progress -1

[16:43:19.0851] <Restore Device <<<<<MEID>>>>>F0>: operation 27 progress -1

[16:43:19.0929] <Restore Device <<<<<MEID>>>>>F0>: operation 18 progress 0

[16:43:20.0943] <Restore Device <<<<<MEID>>>>>F0>: operation 18 progress 100

[16:43:20.0943] <Restore Device <<<<<MEID>>>>>F0>: operation 46 progress -1

[16:43:20.0959] <Restore Device <<<<<MEID>>>>>F0>: operation 46 progress -1

[16:43:20.0975] <Restore Device <<<<<MEID>>>>>F0>: operation 17 progress -1

[16:43:25.0817] device returned CFError with code 6

[16:43:25.0832] dumping CFError returned by restored:

[16:43:25.0832] CFError domainXXXXXXXXXXXXXXXXXXXin code:6 description:failed to fixup var

[16:43:25.0832] Sending acknowledgement that final status was received

[16:43:27.0237] Restore completed, status:6

[16:43:27.0237] Failure Description:

[16:43:27.0237] Depth:0 Error:AMRestorePerformRestoreModeRestoreWithError failed with error: 6

[16:43:27.0237] Depth:1 Error:無法完成作業。（AMRestoreErrorDomain 錯誤 6 - Failed to handle message type StatusMsg）

[16:43:27.0237] Depth:2 Error:無法完成作業。（AMRestoreErrorDomain 錯誤 6 - failed to fixup var）

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