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

[sofakng]

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?

 

[maflynn]

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.

 

[sofakng]

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...

Thanks!!

 

[BlownJetta]

Yes please take out the SIM card.

 

[dave006]

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...

Thanks!!

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:
http://cnettv.cnet.com/8301-13415_53-9962462-11.html?tag=rtcol;relnews
http://www.zdziarski.com/papers/passcode.html

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.

Dave

 

[sofakng]

Perfect!

Thanks for the help everybody!

 

[CocoaPuffs]

DFU restore it.