iphone 4 restore 21 error

Discussion in 'iPhone' started by srwright93, Oct 13, 2014.

  1. srwright93 macrumors newbie

    Oct 13, 2014
    Hi all

    i recently replaced the screen on my iphone 4.

    It all turned on fine and i was using it untill i let the battery run down and it died.

    then it started a load up loop. going to the apple logo then off again.

    so i plugged it into the computer and did a restore.

    in the restore i get error 21 :/
  2. eclipse01 macrumors 68020


    May 16, 2011
    Eau Claire, WI
    sounds like you have to change your source from Cydia to Apple

    was it jailbroken?

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