iPhone SIM card compatibility question

Ramesh

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Jul 12, 2007
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Irvine, Ca.
#1
If I take my iPhone sim card (non 3G) and place it into a 3G phone, the phone will work, right? I just won't be able to use the "internet" or whatever it's called on the phone, right?
 

Youngbinks

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Jun 4, 2007
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Atlanta, Georgia
#2
As far as I know this is correct. It has worked for me on my other phones but they are unlocked, though I don't think that will make a difference though you will have to put it into an AT&T phone otherwise.
 

Ramesh

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Jul 12, 2007
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Irvine, Ca.
#6
probably edge, but I would think it's an automated thing.