Remove SIM card before selling? What else do I need to do?

Discussion in 'iPhone' started by sofakng, Jul 6, 2009.

  1. sofakng macrumors regular

    Dec 5, 2008
    I'm selling my old iPhone 3G (16GB, Black) and I'm wondering if I need to remove the SIM card before selling it.

    Also, how do I wipe the device completely clean?
  2. maflynn Moderator


    Staff Member

    May 3, 2009
    To wipe it go to (on the phone) settings -> general-> reset (last option at the bottom of the screen) and select reset all settings.

    Make sure its plugged in because it could take a very long time and you may run out of juice.
  3. sofakng thread starter macrumors regular

    Dec 5, 2008
    Great, thanks for the reply.

    That will erase all of my contacts, songs, etc, etc? I've heard that people can still recover this data but it's rare. Is there a more secure method to overwriting everything?

    Also, I'm still wondering about the SIM card...

  4. BlownJetta macrumors member

    Jun 19, 2009
    Stow, OH
  5. dave006 Contributor


    Jul 3, 2008
    Just West of East
    The Apple "Erase All Content and Settings.” will cover 99.999% of the customer base but if you are really paranoid here are a couple of links to a long way to do multiple overwites of the iPhone.

    Secure Erase:;relnews

    Also, I will second the suggestion to remove your SIM, it can't be reused so there is no need to leave it in the iPhone. No GSM carrier will allow a SIM to be reused. While the iPhone makes no use of the SIM for any contact information storage or anything else, it is just a good practice to remove it and destroy if you are not going to keep it active and reuse it in another phone.

  6. sofakng thread starter macrumors regular

    Dec 5, 2008
  7. CocoaPuffs macrumors 68010

    Aug 23, 2008

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