1. #1
    Unregistered

    How to fix iTunes Error 21 Issue?

    When I tried to restore my iPad with a backup I already had, iTunes kept throwing the Error 21 message again and again.I don't know what is happening. I tried to solve it and thus founded solution on Internet but there was no any satisfactory solution for that.So I have posted this question here.Hope you guys will help me?

  2. #2
    G.SATYANARAYAN Array
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    May 2012
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    mahasamund
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    413

    Re: How to fix iTunes Error 21 Issue?

    This error occurs easily in ipads itunes.this can be fixed by doing some work, so firstCheck you are in DFU mode or not. This mode is a device firmware upgrade mode,you need to ensure that you are in DFU mode. When your iPad screen comes to black although it completely turned ON, then it simply means that you are in DFU mode.when the pop-out comes with iTunes error 21, it becomes mandatory to ensure you are in the right mode(DFU mode).Now some simple steps to ON DFU mode.This is the best and easy way.

  3. #3
    puruthaman Array
    Join Date
    May 2012
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    CHENNAI
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    Re: How to fix iTunes Error 21 Issue?

    Hi Dude!!!

    Please check the following,

    *Check your Mode is in DFU or Not,
    *If it is not so you should make/set your mode to DFU.

    This will ensure you will not get Error21 in future.

    Thank You!!!

  4. #4
    Supra Array
    Join Date
    May 2012
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    192

    Re: How to fix iTunes Error 21 Issue?

    This is the common error of Ipad

    For this you need to do the following

    Check if you are in DFU mode or not

    if not set it.

    Error 21 is nothing but when your ipad screens turns black for this you need DFU mode

  5. #5
    Moksh Phulia Array
    Join Date
    May 2012
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    414

    Re: How to fix iTunes Error 21 Issue?

    first of all, ensure that the device is in DFU mode. after you've switched to the DFU mode, you'll no more see this ERROR 21.

  6. #6
    Moksh Phulia Array
    Join Date
    May 2012
    Posts
    414

    Re: How to fix iTunes Error 21 Issue?

    first of all, ensure that the device is in DFU mode. after you've switched to the DFU mode, you'll no more see this ERROR 21.

  7. #7
    Sumit06101987 Array
    Join Date
    Jun 2012
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    497

    Re: How to fix iTunes Error 21 Issue?

    Hi,

    Well this is something very common

    You have to set the DFU mode for it

  8. #8
    arunwillbe1 Array
    Join Date
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    2,188

    Re: How to fix iTunes Error 21 Issue?

    We can fix this error 21 issue easily.

    Check the DFU mode is latest version or not.If not upgrade to latest.

    Because of this DFU mode error 21 occurs.This is a mandatory you should ensure the right DFU mode for avoiding the error 21 inipad.

  9. #9
    Kalyani199125 Array
    Join Date
    May 2012
    Posts
    476

    Re: How to fix iTunes Error 21 Issue?

    This type of error 21 occurs because of not selected the right DFU Mode.So,select the right DFU mode and also update to new latest DFU mode.

  10. #10
    yeswanth Array
    Join Date
    May 2012
    Posts
    1,166

    Re: How to fix iTunes Error 21 Issue?

    This error 21 is mainly due to the issue about that of the DFU mode.
    IF you iPad is having then its k, otherwise go to the app store and then fetch for the apps you like have and then Get it.
    Install the app without any issues such that in future you may not haven an issues.
    The main cause of this error is due to the DFU mode.
    Make sure that your DFU is the latest one.

  11. #11
    kondaveetisrikanth Array
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    guntur
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    Re: How to fix iTunes Error 21 Issue?

    We can fix this error 21 issue easily.
    Check if you are in DFU mode or not
    after you've switched to the DFU mode. then problem will be solved

  12. #12
    ashwak84 Array
    Join Date
    Jun 2012
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    897

    Re: How to fix iTunes Error 21 Issue?

    Hello,
    To fix itunes error 21:
    Make sure your device is in DFU mode.
    DFU means Device Firmware Update.
    And check if it is correctly worked or not.
    ...@@@...

  13. #13
    Bee Array
    Join Date
    Nov 2012
    Posts
    544

    Re: How to fix iTunes Error 21 Issue?

    This error occurs easily in ipads itunes.this can be fixed by doing some work, so firstCheck you are in DFU mode or not. This mode is a device firmware upgrade mode,you need to ensure that you are in DFU mode. When your iPad screen comes to black although it completely turned ON, then it simply means that you are in DFU mode.when the pop-out comes with iTunes error 21, it becomes mandatory to ensure you are in the right mode(DFU mode).Now some simple steps to ON DFU mode.This is the best and easy way.

  14. #14
    concerned citizen

    Re: How to fix iTunes Error 21 Issue?

    Quote Originally Posted by Unregistered View Post
    When I tried to restore my iPad with a backup I already had, iTunes kept throwing the Error 21 message again and again.I don't know what is happening. I tried to solve it and thus founded solution on Internet but there was no any satisfactory solution for that.So I have posted this question here.Hope you guys will help me?
    All of these posts are garbage and give little to no information. How about some instructions on how to enter dfu mode. Updating dfu? not possible. Quit the misinformation

  15. #15
    RISHU Array
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    Oct 2012
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    534

    Re: How to fix iTunes Error 21 Issue?

    Hello sir,

    I am suggested to you is that you have up[date the i tune apps in your device after that you got the solution of your problem.

    First of all go to the main menu

    The go to the setting

    Then go to the apps setting

    Then go to the manage apps

    Then tap on the I-TUNE

    Then tap on the option

    Then tap on the update

    After that restart your device

    All the best

    Thank you

  16. #16
    m.h.narayana Array
    Join Date
    Jul 2012
    Posts
    1,051

    Re: How to fix iTunes Error 21 Issue?

    Hi friend here we can have the simple steps for that as
    -->First of all you have to go to the home screen.
    -->Then you have to just click on the settings cion on the home screen.
    -->Then just click on the app settings .
    -->Then just go to the manage apps option.
    -->Then you have to just tap on the I-Tune option.
    -->Then you have to jsut tap on the option.
    -->Then you have to just tap on the update.
    -->After that finally you have to just restart the device.


    thank you..................!!!!!!!!!!!!
    abcdef

  17. #17
    somtapanath Array
    Join Date
    Jan 2013
    Posts
    1,324

    Re: How to fix iTunes Error 21 Issue?

    Welcome....

    How to fix iTunes Error 21 Issue

    follow the steps below--

    -->open the home page from the device.

    -->connect the faster internet connection like 3G for better service.

    -->press the update option.

    -->use the latest version of the iTunes apps.

    -->if not solve then open the menu,.

    -->select the setting .

    -->go to the privacy

    -->click the factory data reset .

    -->then reset everything .

    -->finally solve the matter.

  18. #18
    mr-brar Array
    Join Date
    Jul 2013
    Posts
    404

    Re: How to fix iTunes Error 21 Issue?

    Hello friend,

    1.First of all please go to the your system and open the control panel,

    2.After this go to the uninstalling programs and uninstall the itunes software in your system,

    3.Then please restart your system and open the browser and go to the itunes software official website and install the latest version itunes software in your system,

    4.Now connect your device system and open the itunes software and you normally restore your device,

    5.I hope this information use full to you,

    Thanxx,

  19. #19
    mr-brar Array
    Join Date
    Jul 2013
    Posts
    404

    Re: How to fix iTunes Error 21 Issue?

    Hello friend,

    1.First of all please go to the your system and open the control panel,

    2.After this go to the uninstalling programs and uninstall the itunes software in your system,

    3.Then please restart your system and open the browser and go to the itunes software official website and install the latest version itunes software in your system,

    4.Now connect your device system and open the itunes software and you normally restore your device,

    5.I hope this information use full to you,

    Thanxx,

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