Iphone 4 stuck in recovery mode

Discussion in 'iOS 5 and earlier' started by itsmeott, Oct 26, 2011.

  1. itsmeott macrumors newbie

    Joined:
    Oct 26, 2011
    #1
    Hope some one can help me. I have an Iphone 4 that I updated to IOS5 it worked fine for a couple days then it seemed to crash. Now I am stuck in recovery mode loop, when trying to resore on itunes I get error 21. I took it to att they tried to fix it for me to no avail, at a loss as what to do. it is not jailbroken and it is also older than 1yr so no warranty.
    lost with out my phone
     
  2. Kyotoma macrumors 68000

    Kyotoma

    Joined:
    Nov 11, 2010
    Location:
    Carnegie and Ontario
    #2
    Try using TinyUmbrella to kick it out of recovery.
     
  3. TomH TX macrumors regular

    Joined:
    Oct 18, 2010
    #3
    According to an Apple support document I found, but which did NOT link correctly, error 21 arises from security software. Disable the anti-virus on your computer, and try again.

    "Error 20, 21, 34, 37: These errors typically occur when security software interferes with the restore and update process."
     

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