remove SIM card before selling old 3G? upgrading to 3G S

dinosaur1

Member
Silver
Nov 10, 2007
516
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#1
If someone wants to buy my iPhone 3G asap should I remove the sim card on it or leave it? I am buying the new 3G S.

I had the 1st gen iPhone, but what I did is the person met me at the Apple store and he bought my iPhone.....I bought the 3g that same day. I didn't remove the sim card.
 

ZR_Yancy

Genius
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Jul 11, 2008
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#2
You needed to keep your sim. It holds your account info to use your new iPhone.
 

dinosaur1

Member
Silver
Nov 10, 2007
516
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#3
I didn't take it out of the 1st gen iPhone when I sold it to buy the 3G. How did that work?
 

dinosaur1

Member
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Nov 10, 2007
516
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#4
how will the person who buys my 3G iPhone get a sim card, through Apple or AT&T?
 

Europa

Moderator
Senior Moderator
Dec 12, 2008
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#5
Yes, they need to get their own SIM card. Yours has your phone number and account info connected to it.
 

dinosaur1

Member
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Nov 10, 2007
516
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#6
Worst case scenario. What if I don't? I didn't originally when I went from 1st gen to 3G
 

Europa

Moderator
Senior Moderator
Dec 12, 2008
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#7
Well, for starters, someone can rack up a hell of a bill for you.
 

dinosaur1

Member
Silver
Nov 10, 2007
516
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#8
even if I buy the 3G S the same day I sell my old 3G with a new sim card in the 3G S iPhone?
 

styfle

Zealot
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Mar 31, 2008
3,381
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#9
Um...I'm pretty sure the transfer that account info into the new SIM and deactivate the old SIM or else you could use two phones on one line.
 

Ace4261991

New Member
Silver
Jun 18, 2007
530
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#10
be careful because i don't think you can put that sim in anoteher phone and then be elibible for upgrade. or early upgrade fee. because ladst year when i sold my v1 for the 3g i had been using a flip phone for the few weeks i was iPhoneless after selling my v1. then it showed on my account that my mobile devise was that flip phone and not an iPhone anymore so i was not eligible for upgrade at all. thats because i put my sim card in that flip phone so it registered it as my current phone. so after countless phone calls with att i finnaly got it solved and was able to upgrade. but it was a lot of hassle