UNABLE TO RESTORE DEVICE

[jenn-arai]

i have an iphone 7 plus model A1784 when running idevicerestore --erase --latest i get

The following firmwares are currently being signed for iPhone9,4:
  [1] 15.7 (build 19H12)

i pick 1 and it keeps running and after a while i get some errors then it ends with

Checkpoint 1608 complete with code 0
ERROR: Unable to restore device```

any idea what to do?

[alfiecg24]

Try running with --debug. What do you see there?

[klei22]

I also had the same error message when trying to restore an iPad 2 Air.

Sharing --debug output, appears that the ASR checksum fails:

ASR VERIFY PROGRESS: 98%
ramrod_display_set_granular_progress_forced: 49.000000
ASR VERIFY PROGRESS: 100%
ramrod_display_set_granular_progress_forced: 50.000000
ASR: Calculated SHA-1 checksum 6852087808 bytes in 21.75 seconds, 307591.02 KiB/s
ASR: Checksum failed.
ASR: Expected 9D3B2B3ABFB6E3F23E173D19230753BA90A6EDB9
ASR: but got 44271610AB2A82B073CE3466B8263EFD324C51B6
ASR STATUS: fail: checksum failure
ASR: Could not restore - Inappropriate ioctl for device
ASR STATUS: fail
ASR attempt failed. Last error from asr is (No error string returned from asr)
Invalid/empty asr error string. Returning standard asr error
restore_apfs_image : failed to restore an APFS image, error = 1100
Unknown error(1100). Nothing to do
Current system volume stats: 61015 MiB blocks, 54365 MiB available, 54365 MiB free
Failed to asr image and not reattempting for erase install
ASR and invert Failed
[04:20:47.0521-GMT]{3>7} CHECKPOINT FAILURE:(FAILURE:1100) (null):[0x065B] asr_and_invert_image [0]D(failed to restore APFS image)
restore-step-results = {0x1107065B:{0:1100}}
restore-step-codes = {0x1107065B:{0:1100}}
restore-step-domains = {0x1107065B:{0:"AMRestoreErrorDomain"}}
restore-step-error = {0x1107065B:"[0]D(failed to restore APFS image)"}
restore-step-uptime = 278
restore-step-user-progress = 50
[04:20:47.0523-GMT]{3>7} CHECKPOINT NOTICE: (NVRAM set) restore-step-user-progress=50 [sync=true] (first failure)
[04:20:47.0523-GMT]{3>7} CHECKPOINT FAILURE:(FAILURE:1100) RESTORED:[0x0677] perform_main_os_prepare [0]D(failed to restore APFS image)
restore-step-results = {0x11070677:{0:1100};0x1107065B:{0:1100}}
restore-step-codes = {0x11070677:{0:1100};0x1107065B:{0:1100}}
restore-step-domains = {0x11070677:{0:"AMRestoreErrorDomain"};0x1107065B:{0:"AMRestoreErrorDomain"}}
restore-step-error = {0x11070677:"[0]D(failed to restore APFS image)"}
restore-step-uptime = 278
restore-step-user-progress = 50
[04:20:47.0524-GMT]{3>7} CHECKPOINT BEGIN: RESTORED:[0x067C] cleanup_boot_command
restore-step-ids = {0x11030677:49;0x1103065B:57;0x1103067C:58}
restore-step-names = {0x11030677:perform_main_os_prepare;0x1103065B:asr_and_invert_image;0x1103067C:cleanup_boot_command}
restore-step-uptime = 278
restore-step-user-progress = 50
entering reset_boot_command_if_in_values
executing /usr/sbin/nvram -d recovery-boot-mode
Successfully deleted recovery-boot-moderecovery-boot-mode
executing /usr/sbin/nvram -d iboot-failure-reason
Successfully deleted iboot-failure-reasoniboot-failure-reason
[04:20:47.0583-GMT]{3>7} CHECKPOINT END: RESTORED:[0x067C] cleanup_boot_command
restore-step-ids = {0x11030677:49;0x1103065B:57}
restore-step-names = {0x11030677:perform_main_os_prepare;0x1103065B:asr_and_invert_image}
restore-step-uptime = 278
restore-step-user-progress = 50
[04:20:47.0584-GMT]{3>7} CHECKPOINT BEGIN: RESTORED:[0x1613] cleanup_recovery_os_volume
restore-step-ids = {0x11030677:49;0x1103065B:57;0x11031613:59}
restore-step-names = {0x11030677:perform_main_os_prepare;0x1103065B:asr_and_invert_image;0x11031613:cleanup_recovery_os_volume}
restore-step-uptime = 278
restore-step-user-progress = 50
[04:20:47.0585-GMT]{3>7} CHECKPOINT END: RESTORED:[0x1613] cleanup_recovery_os_volume
restore-step-ids = {0x11030677:49;0x1103065B:57}
restore-step-names = {0x11030677:perform_main_os_prepare;0x1103065B:asr_and_invert_image}
restore-step-uptime = 278
restore-step-user-progress = 50
[04:20:47.0586-GMT]{3>7} CHECKPOINT BEGIN: RESTORED:[0x0647] cleanup_check_result
restore-step-ids = {0x11030677:49;0x1103065B:57;0x11030647:60}
restore-step-names = {0x11030677:perform_main_os_prepare;0x1103065B:asr_and_invert_image;0x11030647:cleanup_check_result}
restore-step-uptime = 278
restore-step-user-progress = 50
[04:20:47.0587-GMT]{3>7} CHECKPOINT END: RESTORED:[0x0647] cleanup_check_result
restore-step-ids = {0x11030677:49;0x1103065B:57}
restore-step-names = {0x11030677:perform_main_os_prepare;0x1103065B:asr_and_invert_image}
restore-step-uptime = 278
restore-step-user-progress = 50
[04:20:47.0587-GMT]{3>7} CHECKPOINT BEGIN: RESTORED:[0x0648] cleanup_send_final_status
restore-step-ids = {0x11030677:49;0x1103065B:57;0x11030648:61}
restore-step-names = {0x11030677:perform_main_os_prepare;0x1103065B:asr_and_invert_image;0x11030648:cleanup_send_final_status}
restore-step-uptime = 278
restore-step-user-progress = 50

ERROR: Unable to successfully restore device
04:19:34 property_list_service.c:205 internal_plist_receive_timeout(): initial read=4
04:19:34 property_list_service.c:211 internal_plist_receive_timeout(): 202 bytes following
04:19:34 property_list_service.c:224 internal_plist_receive_timeout(): received 202 bytes
04:19:34 property_list_service.c:253 internal_plist_receive_timeout(): printing 466 bytes plist:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
        <key>CHECKPOINT_COMPLETE</key>
        <true/>
        <key>CHECKPOINT_RESULT</key>
        <integer>0</integer>
        <key>CHECKPOINT_ERROR</key>
        <string>[0]D(failed to restore APFS image)</string>
        <key>CHECKPOINT_ID</key>
        <integer>1608</integer>
        <key>MsgType</key>
        <string>CheckpointMsg</string>
</dict>
</plist>
Checkpoint 1608 complete with code 0
04:19:34 reverse_proxy.c:647 reverse_proxy_client_free(): joining control thread
ReverseProxy[Ctrl]: Terminating
ReverseProxy[Ctrl]: (status=2) Terminated
04:19:34 restore.c:349 restored_goodbye(): called
04:19:34 property_list_service.c:132 internal_plist_send(): sending 285 bytes
04:19:34 service.c:144 service_send(): sending 4 bytes
04:19:34 idevice.c:692 idevice_connection_send(): internal_connection_send 4, sent 4
04:19:34 service.c:144 service_send(): sending 285 bytes
04:19:34 idevice.c:692 idevice_connection_send(): internal_connection_send 285, sent 285
04:19:34 property_list_service.c:137 internal_plist_send(): sent 285 bytes
04:19:34 property_list_service.c:138 internal_plist_send(): printing 285 bytes plist:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
        <key>Label</key>
        <string>idevicerestore</string>
        <key>Request</key>
        <string>Goodbye</string>
</dict>
</plist>
04:19:34 property_list_service.c:205 internal_plist_receive_timeout(): initial read=4
04:19:34 property_list_service.c:211 internal_plist_receive_timeout(): 142 bytes following
04:19:34 property_list_service.c:224 internal_plist_receive_timeout(): received 142 bytes
04:19:34 property_list_service.c:253 internal_plist_receive_timeout(): printing 385 bytes plist:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
        <key>CHECKPOINT_COMPLETE</key>
        <false/>
        <key>CHECKPOINT_RESULT</key>
        <integer>0</integer>
        <key>CHECKPOINT_ID</key>
        <integer>1609</integer>
        <key>MsgType</key>
        <string>CheckpointMsg</string>
</dict>
</plist>
ERROR: Unable to restore device

[alfiecg24]

Near the top it says ASR: Could not restore - Inappropriate ioctl for device

Take a look online - this seems to indicate that there is an issue with the USB connection

[alfiecg24]

But yes you’re right, the checksum did also fail by the looks of it. Try re-downloading the IPSW file?

[nikias]

Either it's related to the transfer (cable) or the device storage is broken.

[klei22]

Thank you for your advice. I tried redownloading the IPSW file and ran into the same errors. I also used different USB cables, and had the same issues. When I originally tried to update via itunes, I kept hearing a connect/disconnect sound for the USB, I wonder if this may be cable or possibly device port related? After using three different cables, the issues still persist. I did some research online about a device storage problems for the IPad Air 2, and saw comments regarding not having enough space in 16Gb / 32Gb models. The device I have includes storage for 16GB with a SIM slot. Perhaps there's just not enough space on the IPad to accommodate the restore. The reason for why the device stopped working was because of an update from firmware version 14 to 15.

[jenn-arai]

thank u for helping the issue was my cable