cant't restore iPad

[hukko]

I have iPad 4 which I want to restore. At first i tried to restore in windows with latest iTunes and i am getting error: iPhone could not be restored unknown error -(1)

Then I tried to restore on Macbook pro computer with OS X El Capitan and latest itunes and I am getting error
The "iPad" could not be restored. An unknown error occurred (50)

Both times in windows and mac I tried to restore my iPad with recovery mode and DFU mode and it always gets stuck around 60% in progress while doing "Restoring iPad firmware"

EDIT 24.01.2016:

I have tried different computers, usb port, usb cables with no results

From windows computer I get this information from log

Spoiler: iPad updater logs

[23:33:33.0126] update_baseband: querying baseband info
[23:33:33.0126] bbupdater: BEGIN: Querying info at stage first
[23:33:33.0126] bbupdater: BEGIN: Preparing first stage
[23:33:33.0126] bbupdater: Requested boot mode: kBBUBootModeNone
[23:33:33.0126] bbupdater: Creating transport, attempts remaining 5...bbupdater: FAILED(kBBUReturnIOError)
[23:33:33.0126] bbupdater: powercycling modem
[23:33:33.0126] bbupdater: Creating transport, attempts remaining 4...bbupdater: FAILED(kBBUReturnIOError)
[23:33:33.0126] bbupdater: powercycling modem
[23:33:33.0126] bbupdater: Creating transport, attempts remaining 3...bbupdater: FAILED(kBBUReturnIOError)
[23:33:33.0126] bbupdater: powercycling modem
[23:33:33.0126] bbupdater: Creating transport, attempts remaining 2...bbupdater: FAILED(kBBUReturnIOError)
[23:33:33.0126] bbupdater: powercycling modem
[23:33:33.0126] bbupdater: Creating transport, attempts remaining 1...bbupdater: FAILED(kBBUReturnIOError)
[23:33:33.0126] bbupdater: powercycling modem
[23:33:33.0126] bbupdater: Creating transport, attempts remaining 0...bbupdater: FAILED(kBBUReturnIOError)
[23:33:33.0126] bbupdater: END(kBBUReturnFailCreateTransportFirst): Preparing first stage
[23:33:33.0126] bbupdater: END(kBBUReturnFailCreateTransportFirst): Querying info at stage first
[23:33:33.0126] send_bbupdate_status: sending baseband update status to host
[23:33:33.0126] update_baseband: calling CFNotificationCenterRemoveEveryObserver
[23:33:33.0126] update_baseband: bbupdater error: The operation couldn\U2019t be completed. (BBUpdater error 50 - Failed creating a communication transport to baseband.)
[23:33:33.0126] Update[Baseband] error - The operation couldn\U2019t be completed. (RamrodErrorDomain error 1004 - update_baseband: failed querying baseband info)
[23:33:33.0126] Update[Baseband] failed - 0 retries remaining...
[23:33:33.0126] 0: RamrodErrorDomain/3ec: update_baseband: failed querying baseband info
[23:33:33.0126] 1: BBUpdater/32: Failed creating a communication transport to baseband.
[23:33:33.0126] unable to convert ramrod error 1004
[23:33:33.0126]
[23:33:33.0126] ==== end of device restore output ====
[23:33:33.0127] AMRAuthInstallDeletePersonalizedBundle
[23:33:33.0322] <Restore Device 0000000057FEC800>: Restore failed (result = -1)
[23:33:33.0339] AMRestorePerformRestoreModeRestoreWithError failed with error: -1
[23:33:33.0339] Finished RestoreOS Restore Phase: Failed
[23:33:33.0450] Restore completed, status:-1
[23:33:33.0450] Failure Description:
[23:33:33.0450] Depth:0 Error:AMRestorePerformRestoreModeRestoreWithError failed with error: -1
[23:33:33.0450] Depth:1 Error:The operation couldn’t be completed. (AMRestoreErrorDomain error -1 - Failed to handle message type StatusMsg)
[23:33:33.0450] Depth:2 Error:The operation couldn’t be completed. (AMRestoreErrorDomain error -1 - failed to update device firmware)
[23:33:33.0450] Depth:3 Error:The operation couldn’t be completed. (AMRestoreErrorDomain error -1 - ramrod firmware update failed)
[23:33:33.0450] Depth:4 Error:The operation couldn’t be completed. (RamrodErrorDomain error 1004 - update_baseband: failed querying baseband info)
[23:33:33.0450] Depth:5 Error:The operation couldn’t be completed. (BBUpdater error 50 - Failed creating a communication transport to baseband.)

 

[Willis]

I know this is a super old thread, but I'm getting the same issue with an iPad Air Cellular. Any ideas, I figure its a baseband issue from the logs, but how do we fix that?

 

[flaubert]

I know this is a super old thread, but I'm getting the same issue with an iPad Air Cellular. Any ideas, I figure its a baseband issue from the logs, but how do we fix that?

Hmm, maybe try approaching it incrementally: are you able to do a Settings > General > Reset > Erase all content and settings (obviously, backup device first!)?

 

[Willis]

Hmm, maybe try approaching it incrementally: are you able to do a Settings > General > Reset > Erase all content and settings (obviously, backup device first!)?

Unable to do that as device has already had restore process started, it now just fails in iTunes.

 

[itsbennett]

I know this is a super old thread, but I'm getting the same issue with an iPad Air Cellular. Any ideas, I figure its a baseband issue from the logs, but how do we fix that?

Has your model recently exhibited "No Service" or "Searching..." out of nowhere? If yes, it's a baseband issue. It'll need a repair.