1. #1
    Unregistered

    Getting error 21 when trying to Restore/Update iPad2 from Jailbroken to IOS 5.1?

    When I am trying to update my wi-fi to 5.1, the iTunes is popping a message" Error 21" and I am unable to complete the process so please help me to fix this issue?

  2. #2
    puruthaman Array
    Join Date
    May 2012
    Location
    CHENNAI
    Posts
    550

    Re: Getting error 21 when trying to Restore/Update iPad2 from Jailbroken to IOS 5.1?

    Yeah i got the same issue but try'd this simple step so i suggest you to dude,,,
    *Use tiny umberalla app,
    *Open tinyumberalla->advance tab->uncheck set host file to cydia on exit,
    *Close tinyumberalla,
    *Finally restore it.

    I think it may help you!!!

  3. #3
    divyadm Array
    Join Date
    May 2012
    Posts
    28

    Re: Getting error 21 when trying to Restore/Update iPad2 from Jailbroken to IOS 5.1?

    first back up the host file somewhere and delete everything under the 127.******* local host address whatever is in your ipad and save it.and then try to update and restore it

  4. #4
    pankaj26 Array
    Join Date
    May 2012
    Posts
    263

    Re: Getting error 21 when trying to Restore/Update iPad2 from Jailbroken to IOS 5.1?

    follow these steps
    -hold power and home button
    -it will prompts to power off
    -leave it,then it will goes to normal.
    this means that the device is in DFU mode
    now restore/update your device...

  5. #5
    aman shrivastava Array
    Join Date
    May 2012
    Posts
    847

    Re: Getting error 21 when trying to Restore/Update iPad2 from Jailbroken to IOS 5.1?

    Follow the steps...
    1. Unplug it from the computer.
    2. Shut off the iPad completely.
    3.Hold Home button and while holding this plug into iTunes.
    4. It will say connect to iTunes then go to device and click Restore.

  6. #6
    Supra Array
    Join Date
    May 2012
    Posts
    192

    Re: Getting error 21 when trying to Restore/Update iPad2 from Jailbroken to IOS 5.1?

    follow these steps

    -hold power and home button

    -it will prompts to power off

    -leave it,then it will goes to normal.

    this means that the device is in DFU mode
    now restore/update your device

  7. #7
    yeswanth Array
    Join Date
    May 2012
    Posts
    1,166

    Re: Getting error 21 when trying to Restore/Update iPad2 from Jailbroken to IOS 5.1?

    Use tiny umberalla app
    open it, select advanced tab
    uncheck set host file to cydia on exit
    close the app and restore it
    Hope this will help you...................

  8. #8
    swagota paira Array
    Join Date
    May 2012
    Location
    west bengal
    Posts
    285

    Smile Re: Getting error 21 when trying to Restore/Update iPad2 from Jailbroken to IOS 5.1?

    follow these steps:-------------

    • -hold power and home button
    • -it will prompts to power off
    • -leave it,then it will goes to normal.
    • this means that the device is in FUD mode.

  9. #9
    vinodmehta Array
    Join Date
    May 2012
    Posts
    815

    Re: Getting error 21 when trying to Restore/Update iPad2 from Jailbroken to IOS 5.1?

    Steps:

    1. Press and hold Power & Home Buttons
    2. It will ask to power off
    3. Do not action anything
    4. Thedevice will be back to normal
    5. Device in FUD mode

  10. #10
    Harshv Array
    Join Date
    Sep 2012
    Posts
    134

    Re: Getting error 21 when trying to Restore/Update iPad2 from Jailbroken to IOS 5.1?

    To get out of this error follow these steps

    1-Tap on Hold power and Home button simultaneosly
    2-It will prompts to power off
    3-Don't do anything
    4-Now it will goes to normal state
    5-Now device is in FUD mode
    6-Now you can update your device

    DONE!

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