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astr0nerd

macrumors newbie
Original poster
Sep 17, 2009
26
0
I have a 3G and my mom recently got herself a 3GS. But she only uses it to make phone calls so she offered to exchange her with mine. The only way to do this is if I can switch out the sim cards.

So is the sim card of a 3GS compatible with a 3G?
 
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