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  1. #1
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    Iphone 4 NEVER been jailbroken, error 21, won't restore?

    Ok I fixed the digitizer on my screen, and it's been like 2 weeks since it's been on and working. Anyways, I plugged it in, and after a couple of minutes it turns on, let's me unlock it, then says connect to itunes, well Itunes doesnt read the cord on any computer, and yet my charger shows its picking up the charge (99%)When I put it into recovery and dfu mode the power button works, but not to turn on, will just flash the apple logo for a couple seconds, turn off, repeat. But Itunes does read the iphone when I put it in recovery and dfu mode but when I try to restore I get error 21I turned off my virus protection and tried to restore like it says for error 21 and it still gives me the errorany reason that the power button doesnt turn it on but works for dfu/recovery mode? Also how do I fix error 21 (also updated to 10.5.1). I need to get this restored to work!

    I posted on the actual apple community and they didn't help at all, more dissed on me.

    It shouldn't be a hardware problem, everything was looked at and shown that it was put together fine.

    Something with the software won't let me restore it....anyone had a similar problem? Could upload video if need be



  2. #2
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    Follow this guide - TUTORIAL - Failsafe method to restore the current version of IOS

    All the steps are designed to avoid all the standard errors you may encounter when restoring a phone, jailbroken or not.
    Last edited by f4780y; 11-21-2011 at 04:09 PM.
    13" MacBook Pro 8GB 2.7GHz i7 500GB | iPad3 4G 64GB 5.1.1 (absinthe) | iPad2 3G 64GB 5.1.1 (redsn0w) | iPad1 3G 64GB 4.3.3 (jbme) |
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  3. #3
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    have you ever heard of a problem like this before?

    Also does step 2 apply to me since mine isn't jailbroken?

  4. #4
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    I was on Ios5, tried to restore, got error 3194, so I tried 5.0.1 (Windows Security Essentials turned off), and all of the steps. Alas, error code 21 again :/ I hope my phone isn't broken

    Also when it says error code, it pops up with the "connect to itunes" picture

  5. #5
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    I don't know how I can put it any clearer than how is did...

    All the steps are designed to avoid all the standard errors you may encounter when restoring a phone, jailbroken or not.
    It certainly doesn't sound like you even tried since you mention trying to install 5.0. YOU CANNOT EVER DO THAT! Follow the guide. ALL OF IT.

    Best of luck.
    13" MacBook Pro 8GB 2.7GHz i7 500GB | iPad3 4G 64GB 5.1.1 (absinthe) | iPad2 3G 64GB 5.1.1 (redsn0w) | iPad1 3G 64GB 4.3.3 (jbme) |
    iPhone5 32GB 6.0 (stock) | iPhone4S 64GB 5.1.1 (absinthe) | iPhone4 32GB 4.3.3 (jbme) | iPhone3G 16GB 3.1.3 (jbme) |
    iPod Classic 6G 160GB (stock) | AppleTV 2G 5.0.2 (seas0npass)


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  6. #6
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    I meant restoring to 5.0. I unchecked the one thing in tiny umbrella, downloaded the 5.0 firmware, turned off my antivirus software, put it in dfu mode, and pressed shift/restore and pressed on the downloaded 5.0, what am I doing wrong?

  7. #7
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    Plus you say my phone must be on to put into dfu mode. Like I said earlier, it only stays on when I plug in for awhile or put in dfu or recovery mode. It doesn't power on to my main screen unless in wall charger for a while, which makes me "plug into" itunes either way. So technically my phone is off, can I still put in to dfu mode to get it to work?

  8. #8
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    Quote Originally Posted by Spanky23 View Post
    I meant restoring to 5.0. I unchecked the one thing in tiny umbrella, downloaded the 5.0 firmware, turned off my antivirus software, put it in dfu mode, and pressed shift/restore and pressed on the downloaded 5.0, what am I doing wrong?
    You keep saying 5.0. Do you mean 5.0? I can't say this more clearly. YOU CANNOT INSTALL 5.0. You can ONLY install 5.0.1. There is a BIG difference. 5.0 is a SEPARATE firmware from 5.0.1.

    Also, it does not matter whether your device is on or off for DFU. If you connect the device to the PC and hold both buttons for 10 seconds then let go of power whilst continuing to hold home, it will go into DFU mode.

    You should not be getting iTunes error 21 if you are following all of this exactly.
    Last edited by f4780y; 11-21-2011 at 04:55 PM.
    13" MacBook Pro 8GB 2.7GHz i7 500GB | iPad3 4G 64GB 5.1.1 (absinthe) | iPad2 3G 64GB 5.1.1 (redsn0w) | iPad1 3G 64GB 4.3.3 (jbme) |
    iPhone5 32GB 6.0 (stock) | iPhone4S 64GB 5.1.1 (absinthe) | iPhone4 32GB 4.3.3 (jbme) | iPhone3G 16GB 3.1.3 (jbme) |
    iPod Classic 6G 160GB (stock) | AppleTV 2G 5.0.2 (seas0npass)


    iPhoneForums support only legitimate jailbreakers. Don't use your jailbreak to pirate or steal!
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  9. #9
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    So I get it in to DFU mode from turn off (since it doesnt turn on correctly just goes to the plug into itunes screen)

    Go to restore, DID EVERYTHING you said, restore to now 5.0.1 and halfway through authorizing it goes back to the "plug into itunes" screen and error code 21

    This phone is impossible

    I turned off Microsoft Windows Essentials, and unchecked the box in the Umbrella program. What else am I doing wrong?
    Last edited by f4780y; 11-21-2011 at 05:00 PM.

  10. #10
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    Quote Originally Posted by Spanky23 View Post
    So I get it in to DFU mode from turn off (since it doesnt turn on correctly just goes to the plug into itunes screen)

    Go to restore, DID EVERYTHING you said, restore to now 5.0.1 and halfway through authorizing it goes back to the "plug into itunes" screen and error code 21

    This phone is impossible

    I turned off Microsoft Windows Essentials, and unchecked the box in the Umbrella program. What else am I doing wrong?
    If you are seeing the iTunes connect screen, you did not get into DFU mode. You need to ignore what is happening on the screen and follow the instructions. The screen should remain blank if you are in DFU mode. Nothing should be visible at all. Are you sure you are following the instructions to put the device into DFU mode properly?

    Are you using an official Apple USB cable? 3rd party ones can cause problems. Also, try a different USB port.
    Last edited by f4780y; 11-21-2011 at 05:00 PM.
    13" MacBook Pro 8GB 2.7GHz i7 500GB | iPad3 4G 64GB 5.1.1 (absinthe) | iPad2 3G 64GB 5.1.1 (redsn0w) | iPad1 3G 64GB 4.3.3 (jbme) |
    iPhone5 32GB 6.0 (stock) | iPhone4S 64GB 5.1.1 (absinthe) | iPhone4 32GB 4.3.3 (jbme) | iPhone3G 16GB 3.1.3 (jbme) |
    iPod Classic 6G 160GB (stock) | AppleTV 2G 5.0.2 (seas0npass)


    iPhoneForums support only legitimate jailbreakers. Don't use your jailbreak to pirate or steal!
    Please review the hacking section rules before posting.


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