iphone restor error 21

Discussion in 'iPhone, iPod & iPad' started by xtreme1, May 8, 2011.

  1. xtreme1
    OP

    xtreme1 GBAtemp Advanced Fan

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    Nov 14, 2008
    United States
    i didnt update my iphone to 3.3? or whatever the latest sbowbreeze is until after i made the package would that cause it not to load? so do i need to make the package when im on the newest firmware? & then restore it with the new package?
     
  2. Dialexio

    Dialexio GBAtemp Advanced Maniac

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    Mar 14, 2009
    United States
    Was your device put in "pwned DFU mode?" This mode is essential in order to use custom IPSWs. If not, you can use iREB (if you have Windows) or redsn0w to do so.