How to verify that an iPhone has been wiped clean

Discussion in 'iPhone' started by duelingdragons, Jun 25, 2010.

  1. duelingdragons macrumors 65816

    Joined:
    May 13, 2007
    Location:
    Orlando, FL
    #1
    I'm selling my 3GS, I did a restore in iTunes, and it automatically upgraded to iOS4. I chose not to use a backup when I restored, and now it's giving me the "No SIM Installed" message.

    Is it safe to say that everything is wiped clean?
     

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