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Thread: iphone 4 custom restore 4.1 error 21

  1. #1
    Default iphone 4 custom restore 4.1 error 21
    i downloaded custom cooked firmware 4.1 and also did cook one on mac but whenever i try to restore to 4.1 it gives error 21 . i have tried every possible way to put iphone in DFU mode but i still get the error . plzz somebody help...

  2. #2
    If you have a Mac, go through pwnage tool and put ur device in dfu mode when it directs you to. The Dev Team says that when you do this, pwnage exploits iTunes into thinking everything is ok.

  3. #3
    i m on baseband 2.10 wud that get downgraded so i can use ultrsnow to unlock carrier?

  4. #4
    Retired Moderator iYeow's Avatar
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    Quote Originally Posted by ravz View Post
    i m on baseband 2.10 wud that get downgraded so i can use ultrsnow to unlock carrier?
    No you can't downgrade your baseband. You have to wait for a new unlock.

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