What will happen if I insert my 1st Gen iPhone sim card into iPhone 3GS?

Q. What will happen if I insert my 1st Gen iPhone sim card into unlocked iPhone 3GS? I turned on the 3GS iphone's 3G network, it showed the "3G" icon on the left up corner, and the internet worked perfectly. I have the 1st Gen iphone contract, if I dont tell AT&T, will AT&T find and charge fee for the 3G network function? Thanks!

A. It will tell you to connect your phone to itunes to activate it.

Can you change your iPhone 2g sim card without jail breaking it?

Q. i have a mortorola razr at&t sim card (prepaid) and i have a de-activated iphone 2g. so can i just change the iphone sim card without unlocking or jailbreaking or anything? i'm not chaninging the carrier or anything? i just want to put the sim card of a at&t prepaid phone into an iphone. can i? ..if so, how?

A. You should be able to.

When you put a new sim card in an iPhone you still have to activate it through iTunes.

Simply put the new sim card in the iPhone and plug it into your computer, ensuring that iTunes is on the computer.

The iPhone should open iTunes and you should be able to activate the iPhone.

If you take out the iPhone sim card would the option still work with out the phone service.?

Q. If you take out the iPhone sim card would the option still work with out the phone service.
Thanks.
When you take the iPhone sim card out and connect to iTunes What will happend?

A. good question!

I'm trying it now!

first it complains, then I reboot

wifi works, apps work,,, phone does not!

Not bad!!

then I put it back in... back to normal!


UPDATE... perhaps if you marked some of my answers as best... I might try that!

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